To check the existence of a local variable: if 'myVar' in locals(): # myVar exists. To check the existence of a global variable: ... <看更多>

This is a question I get almost everyday asking "How do I check if a file exist ?". In this Python tutorial, I will share a simple script to ... ... <看更多>

Check if file exists with Python. GitHub Gist: instantly share code, notes, and snippets. ... <看更多>

The last type of error we'll cover today are those associated with reading and writing files: FileNotFoundError . If you try to read a file that does not exist, ... ... <看更多>

For example how can I check if "Cube" exist? If yes I will make another object green, if no I will make it red. python · objects. ... <看更多>