Most voted questions in Python

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How to I clear Tkinter Canvas using Python?

To clear a canvas, use the delete method.  This ensures ...READ MORE

Dec 24, 2018 in Python by Nymeria
 • 3,560 points • 16,569 views
0 votes
1 answer

What is the preferred way to concatenate strings in python??

If the strings you are concatenating are ...READ MORE

Dec 21, 2018 in Python by charlie_brown
 • 7,720 points • 1,159 views
0 votes
1 answer

I have a dictonary in python how to access the value field?

dic={"car":["limo","sedan"]} print (dic.keys())    <-----------------------Fetch the key "car" print (dic['car'][0])   <------------------------Fetch ...READ MORE

Dec 20, 2018 in Python by Shuvodip
 • 1,234 views
0 votes
1 answer

What is the difference between staticmethod and classmethod?

A staticmethod is a method that knows nothing about ...READ MORE

Dec 18, 2018 in Python by abc
 • 1,170 views
0 votes
1 answer

sys.argv[1] what is the meaning of it?

sys.argv[1] contains the first command line argument passed to your script. For ...READ MORE

Dec 18, 2018 in Python by abc
 • 10,955 views
0 votes
1 answer

Empty a list in python.

You could use the clear() method of list which is parallel ...READ MORE

Dec 18, 2018 in Python by Shuvodip
 • 1,066 views
0 votes
1 answer

What does calling a function means in Python?

Calling a function means that you are ...READ MORE

Dec 18, 2018 in Python by Shuvodip
 • 1,421 views
0 votes
2 answers

How to use virtual environment in Python?

venv (for Python 3) and virtualenv (for Python 2) allow ...READ MORE

Aug 25, 2020 in Python by Pistle
 • 300 points • 1,283 views
0 votes
1 answer

How to handle AssertionError in Python and find out which line or statement it occurred on?

Use the traceback module: import sys import traceback try: ...READ MORE

Dec 18, 2018 in Python by charlie_brown
 • 7,720 points • 6,177 views
0 votes
1 answer

How to calculate cosine similarity between two lists using Pythong?

You should try SciPy. It has a bunch ...READ MORE

Dec 18, 2018 in Python by charlie_brown
 • 7,720 points • 9,604 views
0 votes
1 answer

How can I change the data type to string in Python?

You can use str(variablename) This is called conversion ...READ MORE

Dec 18, 2018 in Python by Shuvodip
 • 1,426 views
0 votes
2 answers

How can I get the count of a list in Python?

n=[1,2,3,4,5,6,7,8,9] print(len(n)) =9 READ MORE

Dec 10, 2020 in Python by anonymous
 • 1,990 views
0 votes
5 answers

How can I use grep in Python?

The first part starts with grep , followed by ...READ MORE

Dec 14, 2020 in Python by Gitika
 • 65,730 points • 74,562 views
0 votes
1 answer

Signed angle between vectors

If you have an atan2() function in ...READ MORE

Dec 11, 2018 in Python by SDeb
 • 13,300 points • 4,587 views
0 votes
1 answer

Linter Pylint not installed

Try the following steps: 1. Open a terminal ...READ MORE

Dec 11, 2018 in Python by SDeb
 • 13,300 points • 3,067 views
0 votes
1 answer

How do I determine if my python shell is executing in 32bit or 64bit mode on OS X?

UPDATED: One way is to look at sys.maxsize as ...READ MORE

Dec 11, 2018 in Python by aryya
 • 7,460 points • 2,111 views
0 votes
2 answers

Need help using PYTHONPATH

PYTHONPATH only affects import statements, not the top-level Python interpreter's ...READ MORE

Dec 17, 2018 in Python by iangregor
 • 300 points • 1,595 views
0 votes
1 answer

How can I use indices in math using python

Operator ^ is a bitwise operator, which does "bitwise exclusive or". More: http://wiki.python.org/moin/BitwiseOperators The ...READ MORE

Dec 11, 2018 in Python by aryya
 • 7,460 points • 2,863 views
0 votes
1 answer

How can I represent an Enum in Python?

Here is one implementation: class Enum(set): ...READ MORE

Dec 11, 2018 in Python by aryya
 • 7,460 points • 1,187 views
0 votes
1 answer

How can I turn an input date into a readable string in Python?

The datetime class has a method strftime. strftime() ...READ MORE

Dec 11, 2018 in Python by aryya
 • 7,460 points • 1,225 views
0 votes
1 answer

Cursor Position in Python

You can use the following to retrieve ...READ MORE

Dec 11, 2018 in Python by SDeb
 • 13,300 points • 3,271 views
0 votes
1 answer

Execute PHP code in Python

Try the following Code: import subprocess # if the ...READ MORE

Dec 11, 2018 in Python by SDeb
 • 13,300 points • 14,659 views
0 votes
1 answer

Measurement of time elapsed

If you just want to measure the ...READ MORE

Dec 5, 2018 in Python by SDeb
 • 13,300 points • 1,072 views
0 votes
1 answer

Empty while loop in Python

while file.readline().startswith("#"):     pass The pass statement does nothing. It ...READ MORE

Dec 5, 2018 in Python by SDeb
 • 13,300 points • 4,169 views
0 votes
1 answer

How can I prevent or alter access to class variables in Python?

The ActiveState solution that Pynt references makes instances of ...READ MORE

Dec 5, 2018 in Python by aryya
 • 7,460 points • 3,680 views
0 votes
1 answer

How can I make Python's UnitTest Framework fail if an exception is raised by any thread?

I've come across this problem myself, and ...READ MORE

Dec 5, 2018 in Python by aryya
 • 7,460 points • 8,694 views
0 votes
1 answer

How to measure time elapsed in Python?

If you just want to measure the ...READ MORE

Dec 4, 2018 in Python by SDeb
 • 13,300 points • 12,836 views
0 votes
1 answer

Why does the AttributeError occur?

This happens because the scipy module doesn't ...READ MORE

Dec 4, 2018 in Python by SDeb
 • 13,300 points • 3,248 views
0 votes
1 answer

How to change one character in a string in Python?

Python strings are immutable, you change them ...READ MORE

Dec 4, 2018 in Python by Nymeria
 • 3,560 points • 1,588 views
0 votes
1 answer

How to write inline if statement for print in Python?

Inline if-else expression must always contain the else ...READ MORE

Dec 4, 2018 in Python by Nymeria
 • 3,560 points
edited Dec 6, 2018 by Nymeria • 17,115 views
0 votes
1 answer

AWSCLI error

You can Try the following command and ...READ MORE

Dec 3, 2018 in Python by SDeb
 • 13,300 points • 1,373 views
0 votes
1 answer

Single line Webserver in Python

It is pretty difficult to have a ...READ MORE

Dec 3, 2018 in Python by SDeb
 • 13,300 points • 937 views
0 votes
1 answer

How to correctly return an a dictionary as an output in zappier code using python?

David here, from the Zapier Platform team. ...READ MORE

Dec 3, 2018 in Python by charlie_brown
 • 7,720 points • 2,081 views
0 votes
1 answer

Problem while using local dynamoDB container (Boto3 put_item error)

DynamoDB does not autogenerate the ID when ...READ MORE

Dec 3, 2018 in Python by charlie_brown
 • 7,720 points • 4,340 views
0 votes
4 answers

How to print objects of class using print function in Python?

You have to called the built in ...READ MORE

May 12, 2021 in Python by anonymous
edited Mar 5 • 79,625 views
0 votes
3 answers

How to get the return value from a thread using python?

FWIW, the multiprocessing module has a nice interface for ...READ MORE

Dec 15, 2020 in Python by Roshni
 • 10,440 points • 110,432 views
0 votes
1 answer

What is absolute import in Python and how is it used?

An absolute {import, path, URL} tells you exactly how ...READ MORE

Nov 30, 2018 in Python by Nymeria
 • 3,560 points
edited Dec 10, 2018 by Nymeria • 1,781 views
0 votes
1 answer

How to use Pandas HDF5 as a Database in Python?

HDF5 works fine for concurrent read only ...READ MORE

Nov 30, 2018 in Python by Nymeria
 • 3,560 points
edited Dec 10, 2018 by Nymeria • 1,765 views
0 votes
1 answer

Read & write data in mifare card

Hi, you can check out the following ...READ MORE

Nov 29, 2018 in Python by SDeb
 • 13,300 points • 2,484 views
0 votes
1 answer

site.py deleted

You can download a new copy from ...READ MORE

Nov 29, 2018 in Python by SDeb
 • 13,300 points • 1,296 views
0 votes
1 answer

How do I use urllib to see if a website is 404 or 200 in Python?

For Python 3, try doing this: import urllib.request, ...READ MORE

Nov 29, 2018 in Python by Nymeria
 • 3,560 points
edited Dec 11, 2018 by Nymeria • 14,615 views
0 votes
1 answer

How to calculate time interval between two time strings in Python

Try doing this - It is efficient for ...READ MORE

Nov 29, 2018 in Python by Nymeria
 • 3,560 points
edited Dec 11, 2018 by Nymeria • 3,822 views
0 votes
3 answers

Python error "NameError: name 'sr' is not defined"

write at start of code import speech_recognition as ...READ MORE

Mar 17, 2021 in Python by Honir
edited Mar 5 • 44,230 views
0 votes
1 answer

Python argparse error "NameError: name 'file' is not defined"

The right datatype for destination in argpasrse module ...READ MORE

Nov 28, 2018 in Python by Omkar
 • 69,180 points • 14,690 views
0 votes
1 answer

Array values in Python

You can use the enumerate function and ...READ MORE

Nov 28, 2018 in Python by SDeb
 • 13,300 points • 1,189 views
0 votes
1 answer

Equivalent for easy_install & pip

For pip you can check the User ...READ MORE

Nov 28, 2018 in Python by SDeb
 • 13,300 points • 1,770 views
0 votes
1 answer

How to run django unit-tests on production database in Python?

In case someone googles here searching for ...READ MORE

Nov 28, 2018 in Python by Nymeria
 • 3,560 points • 1,892 views
0 votes
1 answer

How to install OpenCV for python3 in Ubuntu?

I found this: https://pypi.python.org/pypi/opencv-python OpenCV on wheels 'Unofficial OpenCV packages ...READ MORE

Nov 28, 2018 in Python by Nymeria
 • 3,560 points • 3,165 views
0 votes
2 answers

Error: Speech to Text Codec cannot decode the bytes in position

import speech_recognition as sr r = sr.Recognizer() audio ='C\Users\Desktop\audiofile1.wav' with ...READ MORE

Nov 28, 2018 in Python by Nabarupa Das
 • 3,598 views
0 votes
1 answer

Command history in interactive Python

You can use the following to get ...READ MORE

Nov 27, 2018 in Python by SDeb
 • 13,300 points • 4,269 views
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