Macros/Python Guide/Common errors

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Common errors

Please, Python is not Basic, this is good.

Indentation

The most common error when starting to develop macros in Python or switching from Basic is the indentation. Python is very strict with syntax.

If this works in Basic

Sub test()

If True Then
MsgBox "Hello"
End If

End Sub

This does not work in Python

def test():
    if True:
    print('Hello')
    return

The correct version is:

def test():
    if True:
        print('Hello')
    return

Many instructions in Python are determined by the indentation. In other programming languages the indentation in code is for readability only, the indentation in Python is very important and validates many logical instructions.

Tabulations or spaces

You can use tabulations or spaces for the indentation. The PEP 8 recommends using spaces, but not combining them with tabs. Python 3 disallows mixing the use of tabs and spaces for indentation and please do not use Python 2 anymore.