[Python-bugs-list] [ python-Bugs-711268 ] A large block of commands after an "if" cannot be compiled

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Bugs item #711268, was opened at 2003-03-28 11:47
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=711268&group_id=5470

Category: Parser/Compiler
Group: Python 2.2.1
Status: Open
Resolution: None
Priority: 5
Submitted By: Bram Moolenaar (vimboss)
Assigned to: Nobody/Anonymous (nobody)
Summary: A large block of commands after an "if" cannot be compiled

Initial Comment:
A Generated Python script Contains the code:
    if 1:
          file = bugreport.vim
          ... long list of commands ....

Executing this code with:
      exec cmds in globals(), globals()

Results in the error:
      SystemError: com_backpatch: offset too large

Looking into the code for com_backpatch() it appears
that the code is more than what can be jumped over.

Possible solutions:
1.  When there is too much code, use another jump
statement that allows for a larger offset.
2.  Always use a jump statement with a large offset
3.  When "if 1" is used, don't generate a jump
statement (not a real fix, but works for the situation
where I ran into the bug).

It looks like this bug exists in all versions of Python.

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=711268&group_id=5470