Closed 5 years ago. So I have recently installed Python Version 2.7.5 and I have made a little loop thing with it but the problem is, when I go to cmd and type python testloop.py I get the error: 'python' is not …

How do I convert the following for-loop containing an if/else into a list comprehension? results = [] for x in xs: results.append(f(x) if x is not None else '') It should yield '' if x is None...

How do I write JSON data stored in the dictionary data to a file? f = open ('data.json', 'wb') f.write (data) This gives the error: TypeError: must be string or buffer, not dict

if not a: # do this! print('a is an empty list') PEP 8 PEP 8, the official Python style guide for Python code in Python's standard library, asserts: For sequences, (strings, lists, tuples), use the fact that empty …

Apr 25, 2016 · Step 3 - Press Modify Step 4 - Select pip Step 5 - Select Add Python to environment variables and install everything This will install pip and add both, Python and pip to your envirnoment …

Is there a way in Python to list all installed packages and their versions? I know I can go inside python/Lib/site-packages and see what files and directories exist, but I find this very awkward. ...

I have this folder structure: application ├── app │ └── folder │ └── file.py └── app2 └── some_folder └── some_file.py How can I import a function from file.py, from within som...

When I type python into the command line, the command prompt says python is not recognized as an internal or external command, operable program, or batch file. What should I do? Note: I have Python...

How do I check whether a file exists or not, without using the try statement?

I have Anaconda working on my system and VsCode working, but how do I get VsCode to activate a specific environment when running my python script?