Major changes in python since version 2.2.3

Question

I wrote a small python script to create a file and calculate the time. I tested it on Fedora 10 and Ubuntu 8.x and it worked well. python versions were 2.5.x.

I tried to run it on my production server (old red hat-based server), the python version is 2.2.3. The script does not work and causes a syntax error in the class definition.

The script defines a class with methods for creating files on disk, measuring time to evaluate the speed of writing to disk. It starts as follows:

class TestDiskSpeed():
    def __init__(self, rounds=1, speedMode=SPEED_MODE_MEGABYTE):

class definition is indicated as an error using python 2.2.3.

What are the major changes in python since version 2.2.3 that could lead to my application crashing? I use these modules: os, sys, time, stat, gc.

Update:

removing ()from the class definition, python accepted the class. but another error occurs on this line:

size = long(size) if size != None else self._size

I am a PHP developer, I just introduced Python programming (maybe a month) and am very used to the triple operation that is performed in PHP as follows:

$var = (condition) ? $valueIfTrue : $valueIfFalse;

I searched and found that this is done in python, like the one I used for my variable size. although it seems like he doesn't like python 2.2.3.

I was going to paste all the code here (I will still issue the script as LGPL), but the code is over 150 lines (still under development).

Answer 1

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python 2.5, . " Python" 2.2 2.5, , , :

, ( , x if p else y), grep.

Answer 2

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Answer 3

Python - " Python XX", .

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pyparsing 2.3.2, , , . ?

Answer 4

, () .

Answer 5

. , :

if size is None:
    size = self._size
else:
    size = long(size)