M.-A. Lemburg wrote:
On 2008-10-31 09:08, Tino Wildenhain wrote:
...
Ah thats interesting. I would not know because I usually avoid such ugly hacks :-)It doesn't even work for already defined local variables:def foo():... x = 1 ... locals()['x'] = 2 ... print x ...foo()1 The reason is that locals are copied in to a C array when entering a function. Manipulations are then done using the LOAD_FAST, STORE_FAST VM opcodes. The locals() dictionary only shadows these locals: it copies the current values from the C array into the frame's f_locals dictionary and then returns the dictionary. This also works the other way around, but only in very cases: * when running "from xyz import *" * when running code using "exec" globals() on the other hand usually refers to a module namespace dictionary, for which there are no such optimizations.. I don't know of any way to insert locals modified in a calling stack frame... but then again: why would you want to do this anyway ?
Yes, thats what I'm saying. Unless you are writing a debugger or something you better don't mess with the internals. Regards Tino
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