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  1. What does colon equal (:=) in Python mean? - Stack Overflow

    In Python this is simply =. To translate this pseudocode into Python you would need to know the data structures being referenced, and a bit more of the algorithm implementation. Some notes about …

  2. What does the "at" (@) symbol do in Python? - Stack Overflow

    An @ symbol at the beginning of a line is used for class and function decorators: PEP 318: Decorators Python Decorators - Python Wiki The most common Python decorators are: @property …

  3. What does [:-1] mean/do in python? - Stack Overflow

    Mar 20, 2013 · Working on a python assignment and was curious as to what [:-1] means in the context of the following code: instructions = f.readline()[:-1] Have searched on here on S.O. and on Google …

  4. slice - How slicing in Python works - Stack Overflow

    Python slicing is a computationally fast way to methodically access parts of your data. In my opinion, to be even an intermediate Python programmer, it's one aspect of the language that it is necessary to …

  5. python - Iterating over a dictionary using a 'for' loop, getting keys ...

    Mar 16, 2017 · In Python 3, the iteration has to be over an explicit copy of the keys (otherwise it throws a RuntimeError) because my_dict.keys() returns a view of the dictionary keys, so any change to …

  6. python - What does ** (double star/asterisk) and * (star/asterisk) do ...

    Aug 31, 2008 · See What do ** (double star/asterisk) and * (star/asterisk) mean in a function call? for the complementary question about arguments.

  7. python - Errno 13 Permission denied - Stack Overflow

    Jul 16, 2020 · PermissionError: [Errno 13] Permission denied: 'C:\\Users\\****\\Desktop\\File1' I looked on the website to try and find some answers and I saw a post where somebody mentioned chmod. 1. …

  8. python - Importing files from different folder - Stack Overflow

    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...

  9. python - How do I execute a program or call a system command?

    How do I call an external command within Python as if I had typed it in a shell or command prompt?

  10. python - SSL: CERTIFICATE_VERIFY_FAILED with Python3 - Stack Overflow

    Sep 2, 2017 · Go to the folder where Python is installed, e.g., in my case (Mac OS) it is installed in the Applications folder with the folder name 'Python 3.6'. Now double click on 'Install Certificates.command'.