Trending questions in Python

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How to generate all permutations of a list?

Hello @kartik, Try this: def permutations(head, tail=''): ...READ MORE

Nov 17, 2020 in Python by Niroj
• 82,800 points
1,521 views
0 votes
1 answer

Calling a function of a module by using its name (a string).

Assuming module foo with method bar: import foo method_to_call = getattr(foo, 'bar') result ...READ MORE

Nov 25, 2020 in Python by Gitika
• 65,730 points
1,206 views
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1 answer

Which is the best Python web framework for beginners?

Go for Django . It's easy and ...READ MORE

Nov 18, 2020 in Python by Jayant Kumar
1,503 views
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1 answer

ImportError: No module named requests

Hello, To install requests module for Python2: $ sudo apt-get install ...READ MORE

Nov 20, 2020 in Python by Niroj
• 82,800 points
1,398 views
0 votes
1 answer

Does Python have a string 'contains' substring method?

You can use the in operator: if "blah" not in ...READ MORE

Nov 26, 2020 in Python by Gitika
• 65,730 points
1,114 views
0 votes
1 answer

How do I parse XML in Python?

First build an Element instance root from the XML, ...READ MORE

Nov 20, 2020 in Python by Gitika
• 65,730 points
1,372 views
0 votes
2 answers

How to use in python for loop not equal marks? example: a!=0

Hello @Azizjon, You can go through the example ...READ MORE

Oct 12, 2020 in Python by Gitika
• 65,730 points
3,360 views
0 votes
1 answer

How can I get a list of locally installed Python modules?

Do not use with pip > 10.0! My ...READ MORE

Nov 26, 2020 in Python by anonymous
• 65,730 points
1,084 views
0 votes
1 answer

Deployed Django project on heroku But I don't know which database is it using. Is there a way to know that So that I can login to admin page?

If you don't configure one you might ...READ MORE

Nov 12, 2020 in Python by anonymous
• 65,730 points
1,681 views
0 votes
1 answer

How do you use a variable in a regular expression?

Instead of using the /regex/g syntax, you can construct ...READ MORE

Nov 26, 2020 in Python by Gitika
• 65,730 points
1,061 views
0 votes
1 answer

What is the difference between visual studio and idle in python programming??

Both are actually IDE-s I don't know ...READ MORE

Oct 16, 2020 in Python by Gitika
• 65,730 points
2,832 views
0 votes
1 answer

How to print prime numbers from 1 to n?

Hello @divyashree def isPrime(n): # ...READ MORE

Oct 13, 2020 in Python by Niroj
• 82,800 points
2,980 views
0 votes
1 answer

Can't import scikit -learn on python3.

Hi@akhtar, First, remove the Sklearn form your Windows system ...READ MORE

Jun 23, 2020 in Python by MD
• 95,460 points
7,812 views
0 votes
1 answer

AssertionError: <class 'numpy.ndarray'>

Hi, @There, The traceback module and sys.exc_info are ...READ MORE

Oct 19, 2020 in Python by anonymous
• 65,730 points
2,688 views
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0 answers
0 votes
1 answer

How to check if a value exists in pandas dataframe index?

Hello @kartik, Basically instead of raising exception I ...READ MORE

Jun 15, 2020 in Python by Niroj
• 82,800 points
8,110 views
0 votes
1 answer

How to read a HDF file with Pandas?

Hi@akhtar, You can read an HDF file using ...READ MORE

Oct 18, 2020 in Python by MD
• 95,460 points
2,735 views
0 votes
1 answer

How are Python metaclasses different from regular class inheritance?

Python 3 class MyClass(object): = New-style class class MyClass: = New-style ...READ MORE

Nov 20, 2020 in Python by Gitika
• 65,730 points
1,263 views
0 votes
1 answer

Error:Pip install: can't open file pip, or Parent module '' not loaded

Hello @kartik, Assuming you have pip installed and ...READ MORE

Jul 3, 2020 in Python by Niroj
• 82,800 points
7,341 views
0 votes
2 answers

module 'numpy' has no attribute 'unit8'

Hi@Ganesh, I think you are calling the wrong ...READ MORE

Sep 22, 2020 in Python by MD
• 95,460 points
3,766 views
0 votes
1 answer

ImportError: No module named mpmath. But mpmath has been installed.

You should use conda to install Python ...READ MORE

Nov 4, 2020 in Python by Gitika
• 65,730 points
1,972 views
0 votes
1 answer

How to install PyTorch?

Here are the steps you can follow:  Install Python. ...READ MORE

Oct 29, 2020 in Python by Gitika
• 65,730 points
2,224 views
0 votes
0 answers

hello guys i need help to make this code run plz !

H= float (input("Is this circuit charging& ...READ MORE

Nov 25, 2020 in Python by anonymous
• 120 points
1,075 views
0 votes
1 answer

How to get the current time in Python?

Use: >>> import datetime >>> datetime.datetime.now() datetime.datetime(2009, 1, 6, 15, ...READ MORE

Nov 20, 2020 in Python by Gitika
• 65,730 points
1,227 views
0 votes
1 answer

How do I get the number of elements in a list?

Hello, The len() function can be used with several different ...READ MORE

Nov 18, 2020 in Python by Niroj
• 82,800 points
1,310 views
0 votes
1 answer

How to check permission inside a template in Django?

Hello @kartik, To check for permissions in templates, ...READ MORE

Aug 7, 2020 in Python by Niroj
• 82,800 points
5,752 views
0 votes
1 answer

How can I create a nested directory?

Hello, Using try except and the right error ...READ MORE

Nov 18, 2020 in Python by Niroj
• 82,800 points
1,267 views
0 votes
1 answer

Why do we not follow the "off by one" rule in python

It's because of the way in which ...READ MORE

Nov 15, 2020 in Python by Gitika
• 65,730 points
1,360 views
0 votes
1 answer

How to pass django rest framework response to html?

Hello @kartik, You need to use an @api_view decorator ...READ MORE

Jun 25, 2020 in Python by Niroj
• 82,800 points
7,519 views
0 votes
1 answer

How to call an external command?

Look at the subprocess module in the standard library: import ...READ MORE

Nov 19, 2020 in Python by Gitika
• 65,730 points
1,187 views
0 votes
1 answer

How do I parse XML in Python?

Hello @kartik, You can use BeautifulSoup: from bs4 import BeautifulSoup x="""<foo> ...READ MORE

Nov 19, 2020 in Python by Niroj
• 82,800 points
1,158 views
0 votes
1 answer

Error: Can't import matplotlib library.

Install the older version of python, I also ...READ MORE

Nov 6, 2020 in Python by Gitika
• 65,730 points
1,696 views
0 votes
2 answers

How do you convert a dictionary to a defaultdict?

from collections import defaultdict a = {1: 2, ...READ MORE

Aug 2, 2019 in Python by Mohammad
• 3,230 points
11,778 views
+1 vote
1 answer

How to install django in anaconda prompt?

Here are the steps that you can ...READ MORE

Jun 23, 2020 in Python by Sirajul
• 59,190 points
7,523 views
0 votes
1 answer

ImportError: No module named 'Cython'

Hi@akhtar, You need to install the Cython module ...READ MORE

Jul 13, 2020 in Python by MD
• 95,460 points
6,700 views
0 votes
1 answer

Why not inherit from List<T>?

There are some good answers here. I ...READ MORE

Nov 20, 2020 in Python by Gitika
• 65,730 points
1,083 views
0 votes
1 answer

How to concatenate items in a list to a single string?

Hello @kartik, Use join: >>> sentence = ['this','is','a','sentence'] >>> '-'.join(sentence) 'this-is-a-sentence' Hope it ...READ MORE

Nov 17, 2020 in Python by Niroj
• 82,800 points
1,199 views
0 votes
1 answer

ModuleNotFoundError: No module named 'stl'

Hi@akhtar, I had the same problem when installing ...READ MORE

Jul 15, 2020 in Python by MD
• 95,460 points
6,573 views
0 votes
1 answer

How do I get user IP address in django?

Hii Kartik, check uwsgi + django source code and pass static param ...READ MORE

Apr 23, 2020 in Python by Niroj
• 82,800 points
10,153 views
0 votes
0 answers

how to send post request to a webpage using cookies and headers in python to scrape the webpage ?

Hello I'm trying to scrape webpage  by sending ...READ MORE

Sep 29, 2020 in Python by Avinash
• 120 points
3,326 views
0 votes
1 answer

ImportError: No module named django_extensions

Hello @kartik, You can solve this error by ...READ MORE

Jun 25, 2020 in Python by Niroj
• 82,800 points
7,420 views
0 votes
0 answers

How to get output result from selecting two dropdown menu options in tkinter?

if i choose a value from first ...READ MORE

Sep 4, 2020 in Python by Charitra
• 120 points
4,386 views
0 votes
1 answer

How to load a custom JS file in Django admin home?

Hello @kartik, You can override templates/admin/index.html and add the JavaScript ...READ MORE

May 14, 2020 in Python by Niroj
• 82,800 points
9,198 views
0 votes
1 answer

Tried setting up Django-shop on my system, but when I try to run pipenv install , I get this:404 Snippet not found

Uninstall all python first then install python ...READ MORE

Nov 12, 2020 in Python by Gitika
• 65,730 points
1,335 views
0 votes
1 answer

How to call an external command?

Hello @kartik, Look at the subprocess module in the standard ...READ MORE

Nov 18, 2020 in Python by Niroj
• 82,800 points
1,076 views
0 votes
1 answer

how to fetch user details and send it to his email address using django rest framework

Hello @mahesh, First you have to fetch user ...READ MORE

Aug 18, 2020 in Python by Niroj
• 82,800 points
5,038 views
0 votes
1 answer

Error: showing database is locked

ah, sqlite3 stuff... remove .session file and ...READ MORE

Nov 15, 2020 in Python by Sheema
1,186 views
0 votes
1 answer

How to filter my model on the basis of text length in django?

Hello @kartik, For Django >= 1.8 you can ...READ MORE

Aug 13, 2020 in Python by Niroj
• 82,800 points
5,257 views
0 votes
1 answer

How to print error in web browser if there is error in code?

You can try to catch these errors ...READ MORE

Nov 6, 2020 in Python by Gitika
• 65,730 points
1,575 views
0 votes
1 answer

How to do math in a Django template?

Hello @kartik, You can use the add filter: {{ object.article.rating_score|add:"-100" }} Thank ...READ MORE

Jun 23, 2020 in Python by Niroj
• 82,800 points
7,445 views