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How to Import Module

 

How to Import Module
ZevhEr

10 Aug, 2009 - 12:07 AM
Post #1

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Joined: 18 Jul, 2009
Posts: 14


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Ok i make a module with this name fibo.py
CODE

        def fib(n):
    a,b=0,1
    while b<n:
        print b,
        a,b=b,a+b

        
        def fib2(n):
    result=[]
    a,b=0,1
    while b<n:
        result.append(b)
        a,b=b,a+b
    return result


i save it to "C:\Python26"

but i can't import it

CODE

import fibo

Traceback (most recent call last):
  File "<pyshell#0>", line 1, in <module>
    import fibo
  File "C:\Python26\fibo.py", line 1
    Python 2.6.2 (r262:71605, Apr 14 2009, 22:40:02) [MSC v.1500 32 bit (Intel)] on win32
             ^
SyntaxError: invalid syntax
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Nallo

RE: How To Import Module

10 Aug, 2009 - 01:41 AM
Post #2

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Joined: 19 Jul, 2009
Posts: 24



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2 Problems:
First the def fib and def fib2 lines have the wrong identitation.
It should be:
CODE

def fib(n):
    a,b=0,1
    while b<n:
        print b,
        a,b=b,a+b

instead of:
CODE

        def fib(n):
    a,b=0,1
    while b<n:
        print b,
        a,b=b,a+b

But that would throw an IdentitationError, not a SyntaxError.

And the second Problem: From the Error Message you got I deduce, that the first line of your fibo.py is:
CODE

Python 2.6.2 (r262:71605, Apr 14 2009, 22:40:02) [MSC v.1500 32 bit (Intel)] on win32

Obviously that is not python code, but the python interpreter expects python code here and tries its best to understand this line as python code (which then produces a SyntaxError). Comment out this line (put a # in front of it) and try again.
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ericode

RE: How To Import Module

14 Sep, 2009 - 06:27 PM
Post #3

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I just wanted to add that you may need to set the PYTHONPATH environmental variable if you are putting your module in a different directory than your main program. I had some trouble with this a while ago and found that I needed to set the variable to the directory that I had my module in, then in my main program add a line like this to import my function:

from FileNameMinusDotPYFileExtension import FunctionName
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