HassanSamo/Mistral7b-instruc-v2-python
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<s>[INST] What does the "yield" keyword do? What is the use of the yield keyword in Python? What does it do?
For example, I'm trying to understand this code1:
def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and distance - max_dist < self._median:
yield self._leftchild
i... |
<s>[INST] What is a metaclass in Python? What are metaclasses? What do you use them for?
[/INST] Classes as objects
Before understanding metaclasses, you need to master classes in Python. And Python has a very peculiar idea of what classes are, borrowed from the Smalltalk language.
In most languages, classes are just ... |
<s>[INST] How do I check whether a file exists using Python? How do I check whether a file exists, without using the try statement?
[/INST] You can also use os.path.isfile
Return True if path is an existing regular file. This follows symbolic links, so both islink() and isfile() can be true for the same path.
import... |
<s>[INST] Does Python have a ternary conditional operator? If Python does not have a ternary conditional operator, is it possible to simulate one using other language constructs?
[/INST] Yes, it was added in version 2.5.
The syntax is:
a if condition else b
First condition is evaluated, then either a or b is returned... |
<s>[INST] Calling an external command in Python How can I call an external command (as if I'd typed it at the Unix shell or Windows command prompt) from within a Python script?
[/INST] Look at the subprocess module in the stdlib:
from subprocess import call
call(["ls", "-l"])
The advantage of subprocess vs system is ... |
<s>[INST] What does `if __name__ == "__main__":` do? What does the if __name__ == "__main__": do?
# Threading example
import time, thread
def myfunction(string, sleeptime, lock, *args):
while 1:
lock.acquire()
time.sleep(sleeptime)
lock.release()
time.sleep(sleeptime)
if __name__ ==... |
<s>[INST] How to make a chain of function decorators in Python? How can I make two decorators in Python that would do the following?
@makebold
@makeitalic
def say():
return "Hello"
...which should return:
"<b><i>Hello</i></b>"
I'm not trying to make HTML this way in a real application - just trying to understand h... |
<s>[INST] How to merge two Python dictionaries in a single expression? I have two Python dictionaries, and I want to write a single expression that returns these two dictionaries, merged. The update() method would be what I need, if it returned its result instead of modifying a dict in-place.
>>> x = {'a':1, 'b': 2}
>... |
<s>[INST] Sort a Python dictionary by value I have a dictionary of values read from two fields in a database: a string field and a numeric field. The string field is unique, so that is the key of the dictionary.
I can sort on the keys, but how can I sort based on the values?
Note: I have read Stack Overflow question Ho... |
<s>[INST] How to check if a directory exists and create it if necessary? What is the most elegant way to check if the directory a file is going to be written to exists, and if not, create the directory using Python? Here is what I tried:
filename = "/my/directory/filename.txt"
dir = os.path.dirname(filename)
try:
... |
<s>[INST] Using global variables in a function other than the one that created them If I create a global variable in one function, how can I use that variable in another function?
Do I need to store the global variable in a local variable of the function which needs its access?
[/INST] You can use a global variable in... |
<s>[INST] How do I install pip on Windows? pip is a replacement for easy_install. But should I install pip using easy_install on Windows? Is there a better way?
[/INST] Python 2.7.9+ and 3.4+
Good news! Python 3.4 (released March 2014) and Python 2.7.9 (released December 2014) ship with Pip. This is the best feature ... |
<s>[INST] Best way to check if a list is empty For example, if passed the following:
a = []
How do I check to see if a is empty?
[/INST] if not a:
print("List is empty")
Using the implicit booleanness of the empty list a is quite pythonic.
</s> |
<s>[INST] What is the difference between @staticmethod and @classmethod in Python? What is the difference between a function decorated with @staticmethod and one decorated with @classmethod?
[/INST] Maybe a bit of example code will help: Notice the difference in the call signatures of foo, class_foo and static_foo:
cl... |
<s>[INST] append vs. extend What's the difference between the list methods append() and extend()?
[/INST] append: Appends object at end.
x = [1, 2, 3]
x.append([4, 5])
print (x)
gives you: [1, 2, 3, [4, 5]]
extend: Extends list by appending elements from the iterable.
x = [1, 2, 3]
x.extend([4, 5])
print (x)
gives ... |
<s>[INST] Does Python have a string contains substring method? I'm looking for a string.contains or string.indexof method in Python.
I want to do:
if not somestring.contains("blah"):
continue
[/INST] You can use the in operator:
if "blah" not in somestring:
continue
</s> |
<s>[INST] Accessing the index in Python 'for' loops How do I access the index itself for a list like the following?
ints = [8, 23, 45, 12, 78]
When I loop through it using a for loop, how do I access the loop index, from 1 to 5 in this case?
[/INST] Using an additional state variable, such as an index variable (which... |
<s>[INST] How to list all files of a directory in Python How can I list all files of a directory in python and add them to a list?
[/INST] os.listdir() will get you everything that's in a directory - files and directories.
If you want just files, you could either filter this down using os.path:
from os import listdir
... |
<s>[INST] "Least Astonishment" and the Mutable Default Argument Anyone tinkering with Python long enough has been bitten (or torn to pieces) by the following issue:
def foo(a=[]):
a.append(5)
return a
Python novices would expect this function to always return a list with only one element: [5]. The result is in... |
<s>[INST] How do I pass a variable by reference? The Python documentation seems unclear about whether parameters are passed by reference or value, and the following code produces the unchanged value 'Original'
class PassByReference:
def __init__(self):
self.variable = 'Original'
self.Change(self.var... |
<s>[INST] Difference between __str__ and __repr__ in Python What is the difference between __str__ and __repr__ in Python?
[/INST] Alex summarized well but, surprisingly, was too succinct.
First, let me reiterate the main points in Alexâs post:
The default implementation is useless (itâs hard to think of one whic... |
<s>[INST] Is there a way to run Python on Android? We are working on an S60 version and this platform has a nice Python API.
However, there is nothing official about Python on Android, but since Jython exists, is there a way to let the snake and the robot work together?
[/INST] One way is to use Kivy:
Open source Py... |
<s>[INST] Explain Python's slice notation I need a good explanation (references are a plus) on Python's slice notation.
To me, this notation needs a bit of picking up.
It looks extremely powerful, but I haven't quite got my head around it.
[/INST] It's pretty simple really:
a[start:end] # items start through end-1
a... |
<s>[INST] Finding the index of an item given a list containing it in Python For a list ["foo", "bar", "baz"] and an item in the list "bar", what's the cleanest way to get its index (1) in Python?
[/INST] >>> ["foo", "bar", "baz"].index("bar")
1
Reference: Data Structures > More on Lists
</s> |
<s>[INST] Catch multiple exceptions in one line (except block) I know that I can do:
try:
# do something that may fail
except:
# do this if ANYTHING goes wrong
I can also do this:
try:
# do something that may fail
except IDontLikeYourFaceException:
# put on makeup or smile
except YouAreTooShortExceptio... |
<s>[INST] Check if a given key already exists in a dictionary I wanted to test if a key exists in a dictionary before updating the value for the key.
I wrote the following code:
if 'key1' in dict.keys():
print "blah"
else:
print "boo"
I think this is not the best way to accomplish this task. Is there a better way ... |
<s>[INST] Add key to a dictionary in Python? Is it possible to add a key to a Python dictionary after it has been created? It doesn't seem to have an .add() method.
[/INST] >>> d = {'key':'value'}
>>> print d
{'key': 'value'}
>>> d['mynewkey'] = 'mynewvalue'
>>> print d
{'mynewkey': 'mynewvalue', 'key': 'value'}
</s... |
<s>[INST] How to get current time in Python What is the module/method used to get current time?
[/INST] >>> import datetime
>>> datetime.datetime.now()
datetime(2009, 1, 6, 15, 8, 24, 78915)
And just the time:
>>> datetime.datetime.time(datetime.datetime.now())
datetime.time(15, 8, 24, 78915)
The same but slightly m... |
<s>[INST] How can I represent an 'Enum' in Python? I'm mainly a C# developer, but I'm currently working on a project in Python.
How can I represent the equivalent of an Enum in Python?
[/INST] Enums have been added to Python 3.4 as described in PEP 435. It has also been backported to 3.3, 3.2, 3.1, 2.7, 2.6, 2.5, a... |
<s>[INST] Parse String to Float or Int In Python, how can I parse a numeric string like "545.2222" to its corresponding float value, 542.2222? Or parse the string "31" to an integer, 31?
I just want to know how to parse a float string to a float, and (separately) an int string to an int.
[/INST] >>> a = "545.2222"
>>>... |
<s>[INST] How can I make a time delay in Python? I would like to know how to put a time delay in a Python script.
[/INST] import time
time.sleep(5) # delays for 5 seconds
Here is another example where something is run once a minute:
import time
while True:
print "This prints once a minute."
time.sleep(60) #... |
<s>[INST] Iterating over dictionaries using for loops in Python I am a bit puzzled by the following code:
d = {'x': 1, 'y': 2, 'z': 3}
for key in d:
print key, 'corresponds to', d[key]
What I don't understand is the key portion. How does Python recognize that it needs only to read the key from the dictionary? Is ... |
<s>[INST] Making a flat list out of list of lists in Python I wonder whether there is a shortcut to make a simple list out of list of lists in Python.
I can do that in a for loop, but maybe there is some cool "one-liner"? I tried it with reduce, but I get an error.
Code
l = [[1, 2, 3], [4, 5, 6], [7], [8, 9]]
reduce(la... |
<s>[INST] Print in terminal with colors using Python? How can I output colored text to the terminal, in Python?
What is the best Unicode symbol to represent a solid block?
[/INST] This somewhat depends on what platform you are on. The most common way to do this is by printing ANSI escape sequences. For a simple exampl... |
<s>[INST] Static class variables in Python Is it possible to have static class variables or methods in python? What syntax is required to do this?
[/INST] Variables declared inside the class definition, but not inside a method are class or static variables:
>>> class MyClass:
... i = 3
...
>>> MyClass.i
3
As @mi... |
<s>[INST] How to get the size of a list items = []
items.append("apple")
items.append("orange")
items.append("banana")
# FAKE METHOD::
items.amount() # Should return 3
How do I do it right?
[/INST] The len() function can be used with a lot of types in Python - both built-in types and library types.
>>> len([1,2,3])... |
<s>[INST] Is there a way to substring a string in Python? Is there a way to substring a string in Python, to get a new string from the 3rd character to the end of the string?
Maybe like myString[2:end]?
If leaving the second part means 'till the end', if you leave the first part, does it start from the start?
[/INST] ... |
<s>[INST] How do you split a list into evenly sized chunks? I have a list of arbitrary length, and I need to split it up into equal size chunks and operate on it. There are some obvious ways to do this, like keeping a counter and two lists, and when the second list fills up, add it to the first list and empty the secon... |
<s>[INST] How can I remove (chomp) a newline in Python? What is the Python equivalent of Perl's chomp function, which removes the last character of a value?
[/INST] Try the rstrip method.
>>> 'test string\n'.rstrip()
'test string'
Note that Python's rstrip method strips all kinds of trailing whitespace by default, no... |
<s>[INST] Static methods in Python? Is it possible to have static methods in Python so I can call them without initializing a class, like:
ClassName.StaticMethod ( )
[/INST] Yep, using the staticmethod decorator
class MyClass(object):
@staticmethod
def the_static_method(x):
print x
MyClass.the_static... |
<s>[INST] How to clone or copy a list? What are the options to clone or copy a list in Python?
Using new_list = my_list then modifies new_list every time my_list changes.
Why is this?
[/INST] You have various possibilities:
You can slice it:
new_list = old_list[:]
Alex Martelli's opinion (at least back in 2007) abo... |
<s>[INST] How to append list to second list (concatenate lists) How do I concatenate two lists in Python?
Example:
listone = [1, 2, 3]
listtwo = [4, 5, 6]
Expected outcome:
joinedlist == [1, 2, 3, 4, 5, 6]
[/INST] Python makes this ridiculously easy.
mergedlist = listone + listtwo
</s> |
<s>[INST] Python join, why is it string.join(list) instead of list.join(string)? This has always confused me. It seems like this would be nicer:
my_list = ["Hello", "world"]
print my_list.join("-")
# Produce: "Hello-world"
Than this:
my_list = ["Hello", "world"]
print "-".join(my_list)
# Produce: "Hello-world"
Is the... |
<s>[INST] Why is reading lines from stdin much slower in C++ than Python? I wanted to compare reading lines of string input from stdin using Python and C++ and was shocked to see my C++ code run an order of magnitude slower than the equivalent Python code. Since my C++ is rusty and I'm not yet an expert Pythonista, pl... |
<s>[INST] How to read a file line by line into a list with Python How do I read every line of a file in Python and store each line as an element in list?
I want to read the file line by line and each line is appended to the end of the list.
[/INST] with open(fname) as f:
content = f.readlines()
I'm guessing that... |
<s>[INST] Installing pip on Mac OS X I spent most of the day yesterday searching for a clear answer for installing pip. I can't find a good solution.
Can somebody help me install it?
[/INST] All you need to do is
sudo easy_install pip
</s> |
<s>[INST] How do I check if a string is a number (float) in Python? What is the best possible way to check if a string can be represented as a number in Python?
The function I currently have right now is:
def is_number(s):
try:
float(s)
return True
except ValueError:
return False
Which... |
<s>[INST] Upgrading all packages with pip Is it possible to upgrade all Python packages at one time with pip?
Note that there is a feature request for this on the official issue tracker.
[/INST] There isn't a built-in flag yet, but you can use
pip freeze --local | grep -v '^\-e' | cut -d = -f 1 | xargs -n1 pip instal... |
<s>[INST] How do you read from stdin in Python? I'm trying to do some of the code golf challenges, but they all require the input to be taken from stdin. How do I get that in Python?
[/INST] You could use the fileinput module:
import fileinput
for line in fileinput.input():
pass
fileinput will loop through all t... |
<s>[INST] Python string formatting: % vs. .format Python 2.6 introduced the str.format() method with a slightly different syntax from the existing % operator. Which is better and for what situations?
The following uses each method and has the same outcome, so what is the difference?
#!/usr/bin/python
sub1 = "python st... |
<s>[INST] Determine the type of a Python object Is there a simple way to determine if a variable is a list, dictionary, or something else? I am getting an object back that may be either type and I need to be able to tell the difference.
[/INST] To get the type of an object, you can use the built-in type() function. Pa... |
<s>[INST] What does ** (double star) and * (star) do for Python parameters? In the following method definitions, what does the * and ** do for param2?
def foo(param1, *param2):
def bar(param1, **param2):
[/INST] The *args and **kwargs is a common idiom to allow arbitrary number of arguments to functions as described ... |
<s>[INST] How to convert string to lowercase in Python? Is there any way to convert an entire user inputted string from uppercase, or even part uppercase to lowercase?
E.g. Kilometers --> kilometers.
[/INST] s = "Kilometer"
print(s.lower())
Official documentation here
</s> |
<s>[INST] Converting string into datetime Short and simple. I've got a huge list of date-times like this as strings:
Jun 1 2005 1:33PM
Aug 28 1999 12:00AM
I'm going to be shoving these back into proper datetime fields in a database so I need to magic them into real datetime objects.
Any help (even if it's just a kic... |
<s>[INST] Getting the last element of a list in Python In Python, how do you get the last element of a list?
[/INST] some_list[-1] is the shortest and most Pythonic.
In fact, you can do much more with this syntax. The some_list[-n] syntax gets the nth-to-last element. So some_list[-1] gets the last element, some_list[... |
<s>[INST] How do I randomly select an item from a list using Python? Assume I have the following list:
foo = ['a', 'b', 'c', 'd', 'e']
What is the simplest way to retrieve an item at random from this list?
[/INST] Use random.choice:
import random
foo = ['a', 'b', 'c', 'd', 'e']
print(random.choice(foo))
</s> |
<s>[INST] How do I sort a list of dictionaries by values of the dictionary in Python? I got a list of dictionaries and want that to be sorted by a value of that dictionary.
This
[{'name':'Homer', 'age':39}, {'name':'Bart', 'age':10}]
sorted by name, should become
[{'name':'Bart', 'age':10}, {'name':'Homer', 'age':39}]... |
<s>[INST] How do I copy a file in python? How do I copy a file in Python? I couldn't find anything under os.
[/INST] shutil has many methods you can use. One of which is:
from shutil import copyfile
copyfile(src, dst)
Copy the contents of the file named src to a file named dst. The destination location must be writa... |
<s>[INST] Manually raising (throwing) an exception in Python How can I raise an exception in Python so that it can later be caught via an except block?
[/INST]
How do I manually throw/raise an exception in Python?
Use the most specific Exception constructor that semantically fits your issue.
Be specific in your me... |
<s>[INST] Replacements for switch statement in Python? I want to write a function in Python that returns different fixed values based on the value of an input index.
In other languages I would use a switch or case statement, but Python does not appear to have a switch statement. What are the recommended Python solut... |
<s>[INST] How to print in Python without newline or space? The question is in the title.
I'd like to do in python what I do in this example in c:
#include <stdio.h>
int main() {
int i;
for (i=0; i<10; i++) printf(".");
return 0;
}
Output:
..........
In Python:
>>> for i in xrange(0,10): print '.'
.
.
.
... |
<s>[INST] Why is "1000000000000000 in range(1000000000000001)" so fast in Python 3? It is my understanding that the range() function, which is actually an object type in Python 3, generates its contents on the fly, similar to a generator.
This being the case, I would have expected the following line to take an inordin... |
<s>[INST] Calling a function of a module from a string with the function's name in Python What is the best way to go about calling a function given a string with the function's name in a Python program. For example, let's say that I have a module foo, and I have a string whose contents are "bar". What is the best way ... |
<s>[INST] Find current directory and file's directory In Python, what commands can I use to find:
the current directory (where I was in the terminal when I ran the Python script), and
where the file I am executing is?
[/INST] To get the full path to the directory a Python file is contained in, write this in that fil... |
<s>[INST] Reverse a string in Python There is no built in reverse function in Python's str object. What is the best way of implementing this?
If supplying a very concise answer, please elaborate on it's efficiency. Is the str converted to a different object, etc.
[/INST] How about:
>>> 'hello world'[::-1]
'dlrow olle... |
<s>[INST] What is __init__.py for? What is __init__.py for in a Python source directory?
[/INST] It's a part of a package. Here's the documentation.
The __init__.py files are required to make Python treat the directories as containing packages; this is done to prevent directories with a common name, such as string, f... |
<s>[INST] How to know if an object has an attribute in Python Is there a way in Python to determine if an object has some attribute? For example:
>>> a = SomeClass()
>>> a.someProperty = value
>>> a.property
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: SomeClass instance has... |
<s>[INST] How do you append to a file in Python? How do you append to the file instead of overwriting it? Is there a special function that appends to the file?
[/INST] with open("test.txt", "a") as myfile:
myfile.write("appended text")
</s> |
<s>[INST] Python @classmethod and @staticmethod for beginner? Could someone explain to me the meaning of @classmethod and @staticmethod in python? I need to know the difference and the meaning.
As far as I understand, @classmethod tells a class that it's a method which should be inherited into subclasses, or... someth... |
<s>[INST] How can you profile a Python script? Project Euler and other coding contests often have a maximum time to run or people boast of how fast their particular solution runs. With python, sometimes the approaches are somewhat kludgey - i.e., adding timing code to __main__.
What is a good way to profile how long a... |
<s>[INST] Find all files in directory with extension .txt in Python How can I find all files in directory with the extension .txt in python?
[/INST] You can use glob:
import glob, os
os.chdir("/mydir")
for file in glob.glob("*.txt"):
print(file)
or simply os.listdir:
import os
for file in os.listdir("/mydir"):
... |
<s>[INST] Create a dictionary with list comprehension in Python I like the Python list comprehension syntax.
Can it be used to create dictionaries too? For example, by iterating over pairs of keys and values:
mydict = {(k,v) for (k,v) in blah blah blah} # doesn't work :(
[/INST] In Python 2.6 and earlier, the dict c... |
<s>[INST] error: Unable to find vcvarsall.bat I tried to install the Python package dulwich:
pip install dulwich
But I get a cryptic error message:
error: Unable to find vcvarsall.bat
The same happens if I try installing the package manually:
> python setup.py install
running build_ext
building 'dulwich._objects' ext... |
<s>[INST] How do I delete a file or folder in Python? How do I delete a file or folder in Python?
I am using the Python scripting language running on the Windows XP operating system.
[/INST] os.remove() will remove a file.
os.rmdir() will remove an empty directory.
shutil.rmtree() will delete a directory and all its c... |
<s>[INST] Getting the class name of an instance in Python How do I find out a name of class that created an instance of an object in Python if the function I am doing this from is the base class of which the class of the instance has been derived?
Was thinking maybe the inspect module might have helped me out here, but... |
<s>[INST] Random string generation with upper case letters and digits in Python I want to generate a string of size N.
It should be made up of numbers and uppercase English letters such as:
6U1S75
4Z4UKK
U911K4
How can I achieve this in a pythonic way?
[/INST] Answer in one line:
''.join(random.choice(string.ascii_u... |
<s>[INST] How do I connect to a MySQL Database in Python? How do I connect to a MySQL database using a python program?
[/INST]
Connecting to MYSQL with Python in 3 steps
1 - Setting
You must install a MySQL driver before doing anything. Unlike PHP, only the SQLite driver is installed by default with Python. The most ... |
<s>[INST] How to print to stderr in Python? I've come across at least three ways to print to stderr:
import sys
print >> sys.stderr, 'spam'
sys.stderr.write('spam\n')
from __future__ import print_function
print('spam', file=sys.stderr)
It seems to contradict zen of Python #13 â , so what's the preferred way t... |
<s>[INST] The meaning of a single- and a double-underscore before an object name in Python I want to clear this up once and for all. Can someone please explain the exact meaning of having leading underscores before an object's name in Python? Also explain the difference between a single and a double leading underscore.... |
<s>[INST] How to leave/exit/deactivate a python virtualenv? I'm using virtualenv and the virtualenvwrapper. I can switch between virtualenv's just fine using the workon command.
me@mymachine:~$ workon env1
(env1)me@mymachine:~$ workon env2
(env2)me@mymachine:~$ workon env1
(env1)me@mymachine:~$
However, how do I exit... |
<s>[INST] Python progression path - From apprentice to guru I've been learning, working, and playing with Python for a year and a half now. As a biologist slowly making the turn to bio-informatics, this language has been at the very core of all the major contributions I have made in the lab. I more or less fell in love... |
<s>[INST] Converting integer to string in Python? I want to convert an integer to a string in Python. I am typecasting it in vain:
t=raw_input()
c=[]
for j in range(0,int(t)):
n=raw_input()
a=[]
a,b= (int(i) for i in n.split(' '))
d=pow(a,b)
d.str()
c.append(d[0])
for j in c:
print j
When I... |
<s>[INST] Nicest way to pad zeroes to string What is the nicest/shortest way to pad a string with zeroes to the left, so the string length has a specific length?
[/INST] Strings:
>>> n = '4'
>>> print n.zfill(3)
004
And for numbers:
>>> n = 4
>>> print '%03d' % n
004
>>> print format(4, '03') # python >= 2.6
004
>>> ... |
<s>[INST] Peak detection in a 2D array I'm helping a veterinary clinic measuring pressure under a dogs paw. I use Python for my data analysis and now I'm stuck trying to divide the paws into (anatomical) subregions.
I made a 2D array of each paw, that consists of the maximal values for each sensor that has been loaded ... |
<s>[INST] Access environment variables from Python I set an environment variable that I want to access in my Python application. How do I get this value?
[/INST] Environment variables are accessed through os.environ
import os
print os.environ['HOME']
Or you can see a list of all the environment variables using:
os.e... |
<s>[INST] How to trim whitespace (including tabs)? Is there a function that will trim not only spaces for whitespace, but also tabs?
[/INST] Whitespace on the both sides:
s = " \t a string example\t "
s = s.strip()
Whitespace on the right side:
s = s.rstrip()
Whitespace on the left side:
s = s.lstrip()
As thedz p... |
<s>[INST] How to remove an element from a list by index in Python? How to remove an element from a list by index in Python?
I found the list.remove method, but say I want to remove the last element, how do I do this? It seems like the default remove searches the list, but I don't want any search to be performed.
[/INS... |
<s>[INST] Why does Python code run faster in a function? def main():
for i in xrange(10**8):
pass
main()
This piece of code in Python runs in
real 0m1.841s
user 0m1.828s
sys 0m0.012s
However, if the for loop isn't placed within a function,
for i in xrange(10**8):
pass
then it runs for a ... |
<s>[INST] Trimming a string in Python How do I remove leading and trailing whitespace from a string in Python?
For example:
" Hello " --> "Hello"
" Hello" --> "Hello"
"Hello " --> "Hello"
"Bob has a cat" --> "Bob has a cat"
[/INST] Just one space, or all such spaces? If the second, then strings already have a .str... |
<s>[INST] Limiting floats to two decimal points I want a to be rounded to 13.95.
>>> a
13.949999999999999
>>> round(a, 2)
13.949999999999999
The round function does not work the way I expected.
[/INST] You are running into the old problem with floating point numbers that all numbers cannot be represented. The command... |
<s>[INST] How to determine the variable type in Python? How do I see the type of a variable whether it is unsigned 32 bit, signed 16 bit, etc.?
How do I view it?
[/INST] Python doesn't have the same types as C/C++, which appears to be your question.
Try this:
>>> i = 123
>>> type(i)
<type 'int'>
>>> type(i) is int
Tru... |
<s>[INST] How to flush output of Python print? How do I force Python's print function to output to the screen?
[/INST] import sys
sys.stdout.flush()
Print by default prints to sys.stdout.
References:
http://docs.python.org/reference/simple_stmts.html#the-print-statement
http://docs.python.org/library/sys.html
http:/... |
<s>[INST] What is the difference between old style and new style classes in Python? What is the difference between old style and new style classes in Python? Is there ever a reason to use old-style classes these days?
[/INST] From http://docs.python.org/2/reference/datamodel.html#new-style-and-classic-classes :
Up t... |
<s>[INST] Extracting extension from filename in Python Is there a function to extract the extension from a filename?
[/INST] Yes. Use os.path.splitext:
>>> import os
>>> filename, file_extension = os.path.splitext('/path/to/somefile.ext')
>>> filename
'/path/to/somefile'
>>> file_extension
'.ext'
</s> |
<s>[INST] Proper way to declare custom exceptions in modern Python? What's the proper way to declare custom exception classes in modern Python? My primary goal is to follow whatever standard other exception classes have, so that (for instance) any extra string I include in the exception is printed out by whatever tool ... |
<s>[INST] Why does comparing strings in Python using either '==' or 'is' sometimes produce a different result? I've got a Python program where two variables are set to the value 'public'. In a conditional expression I have the comparison var1 is var2 which fails, but if I change it to var1 == var2 it returns True.
Now ... |
<s>[INST] How can I count the occurrences of a list item in Python? Given an item, how can I count its occurrences in a list in Python?
[/INST] If you are using Python 2.7 or 3 and you want number of occurrences for each element:
>>> from collections import Counter
>>> z = ['blue', 'red', 'blue', 'yellow', 'blue', 're... |
<s>[INST] What's the canonical way to check for type in python? What is the best way to check whether a given object is of a given type? How about checking whether the object inherits from a given type?
Let's say I have an object o. How do I check whether it's a str?
[/INST] To check if the type of o is exactly str:
t... |
End of preview. Expand in Data Studio
YAML Metadata Warning:The task_categories "conversational" is not in the official list: text-classification, token-classification, table-question-answering, question-answering, zero-shot-classification, translation, summarization, feature-extraction, text-generation, fill-mask, sentence-similarity, text-to-speech, text-to-audio, automatic-speech-recognition, audio-to-audio, audio-classification, audio-text-to-text, voice-activity-detection, depth-estimation, image-classification, object-detection, image-segmentation, text-to-image, image-to-text, image-to-image, image-to-video, unconditional-image-generation, video-classification, reinforcement-learning, robotics, tabular-classification, tabular-regression, tabular-to-text, table-to-text, multiple-choice, text-ranking, text-retrieval, time-series-forecasting, text-to-video, image-text-to-text, image-text-to-image, image-text-to-video, visual-question-answering, document-question-answering, zero-shot-image-classification, graph-ml, mask-generation, zero-shot-object-detection, text-to-3d, image-to-3d, image-feature-extraction, video-text-to-text, keypoint-detection, visual-document-retrieval, any-to-any, video-to-video, other
Dataset Card for Python Q/A pair
This dataset card provides information about the Python Q/A pair dataset.
Dataset Details
Dataset Description
The Python Q/A pair dataset is a preprocessed version of a Python Q/A dataset from StackOverflow, which was originally hosted on Kaggle. The dataset contains high-ranked questions and their corresponding high-ranked answers, sorted from high to low rank.
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Uses
Direct Use
This dataset can be used for tasks such as question answering, text generation, and conversational AI research and development.
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Out-of-Scope Use
This dataset should not be used for tasks outside of natural language processing, such as image recognition or voice recognition.
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Dataset Structure
The dataset contains 100k rows of high-ranked questions and their corresponding high-ranked answers from StackOverflow.
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Dataset Creation
Curation Rationale
The dataset was curated to provide a resource for developing and testing natural language processing models, particularly in the domain of question answering and text generation.
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Source Data
The data in this dataset comes from StackOverflow Q/A pairs that were ranked 1 or above. The raw form of this dataset is hosted on Kaggle.
Data Collection and Processing
The data was collected from StackOverflow and preprocessed to include only high-ranked questions and their corresponding high-ranked answers.
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Who are the source data producers?
The source data was produced by users of StackOverflow.
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Annotations [optional]
This dataset does not contain any additional annotations.
Annotation process
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Who are the annotators?
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Personal and Sensitive Information
The dataset does not contain any personal or sensitive information as it was derived from publicly available data on StackOverflow.
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Bias, Risks, and Limitations
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Recommendations
Users should be made aware of the risks, biases and limitations of the dataset. More information needed for further recommendations.
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Models trained or fine-tuned on HassanSamo/Python-Q_A