Thanks Fredrik, that's fixed it. Apologies for the lazy typing - should have cut and pasted the whole thing.
-----Original Message----- From: Fredrik Lundh [mailto:[EMAIL PROTECTED] Sent: 13 October 2005 08:55 To: python-list@python.org Subject: Re: Scope problem with nested functions. <[EMAIL PROTECTED]> wrote > I'm having trouble resolving a scope problem. I have a module, called > from another script, with this structure: the code you posted gives a syntax error. if I fix that, and add some boilerplate to call getCcyMappings from inside the parseFile function, I get: Traceback (most recent call last): File "script.py", line 19, in ? parseFile(0, 0, 0) File "script.py", line 17, in parseFile getCcyMappings() File "script.py", line 8, in getCcyMappings ccyMappings['CAN'] = ['CAD'] # for example. NameError: global name 'ccyMappings' is not defined which tells you that there is no *global* variable named ccyMappings. the ccyMappings variable in your example isn't a global variable; it's local to the parseFile function, and can be accessed from that function and any inner functions via normal lexical scoping rules (=access, but not rebind). however, the global statement tells Python that the given name is a global variable, and that any attempts to access or rebind that variable should be done at the global (=module) level. if you remove the global statement, Python will look for variables using ordinary lexical scoping, and things will work as expected. </F> ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. Information Technology International (ITI) +44 (0)20 7315 8500 ********************************************************************** -- http://mail.python.org/mailman/listinfo/python-list
