Why Does a 'SyntaxError: Invalid Syntax' Appear on a Correct Line in Older Python Versions?

Why Does "SyntaxError: Invalid Syntax" Appear in a Line with Valid Syntax?

In some older versions of Python, an error message may appear on a seemingly correct line. If this occurs, it's advisable to comment out the flagged line. If the error persists on the subsequent line, two possibilities should be considered:

1. Both lines have errors (with the second concealed by the first).
2. The previous line contains an error that affects the line causing the error.

The second possibility is more common, especially when commenting out the new error line causes the error to jump again.

An example is provided in the code snippet where a syntax error is reported on line 2, even though the actual error is in line 1:

xyzzy = (1 +
plugh = 7

In the code from the question, a similar issue exists: the previous line to the reported error has mismatched parentheses:

fi2=0.460*scipy.sqrt(1-(Tr-0.566)**2/(0.434**2)+0.494

There is no general solution for this issue. The code must be analyzed and understood to determine the proper correction for the parentheses.

Note: In Python versions 3.9 and later, the error handling has been improved, and the error source is correctly identified in the source code.

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