To install a Python package on Macintosh Download the Python package to your workstation, Unpack the package, Open a terminal window, Start sudo, sudo -i Change to the directory of the package, Install the package. pip install PACKAGE_NAME If you don’t install the package in sudo mode, you will get “Permission denied” errors during the […]
When you install PyCharm, the default Python interpreter is may not the version you want to use for your new projects. When you create a new project, and the project interpreter is not set, you may get the following error message: Executed command: /var/folders/_x/_f0zzs1s4sx6bk4s8n78l2jsbn9r3z/T/tmpBoQLx_pycharm-management/pip-9.0.1/setup.py install Error occurred: 40:357: execution error: /System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/distutils/dist.py:266: UserWarning: Unknown distribution option: […]
IronPython can expose Python types to C# libraries, and expose C# libraries to Python code.
Symptom: from MY_FOLDER.MY_FILE import MY_CLASS causes an error: ImportError: No module named MY_FOLDER.MY_FILE Debugging: Execute the program in debug mode, In the Variables window expand Special Variables, Read the __warningregistry__ value. Possible cause: The __init__.py file is missing in the directory of the referenced class. Solution: Create an empty __init__.py file in the directory where the class is referenced […]
Great Python introductory video for C# developers https://www.youtube.com/watch?v=jj60geqaP08 __ (double underscore) Starting the attribute name with double underscore attribute makes it private. To expose the private attributes and methods print(dir(MY_CLASS)) Code hierarchy In Python indentation denotes the hierarchy of the instructions, not curly braces, like in C# or Java. Directories When you create a directory […]
Project management Create a new project in PyCharm In the File menu select New Project…, On the left side select the Python framework you want to use, Enter the name for your project to the end of the Location path, If you have selected a framework that asks for more information Click the More Settings link […]