[Tutor] factorial of anumber

[Debashish Saha]

*PROGRAM TO FIND FACTORIAL OF A NUMBER(I HAVE WRITTEN IT ON GEDIT)*
x=1
n=input('enter a positive integer no:')
for i in range(1,1+n):
    x=x*i
print x


*ERROR:*

enter a positive integer
no:---------------------------------------------------------------------------
EOFError                                  Traceback (most recent call last)
C:\Python27\lib\site-packages\IPython\utils\py3compat.pyc in
execfile(fname, glob, loc)
    166             else:
    167                 filename = fname
--> 168             exec compile(scripttext, filename, 'exec') in glob, loc
    169     else:
    170         def execfile(fname, *where):

C:\Users\as\mnb.py in <module>()
      1 x=1
----> 2 n=input('enter a positive integer no:')
      3 for i in range(1,1+n):
      4     x=x*i
      5 print x

EOFError: EOF when reading a line

*QUESTION*:
HOW TO ASK INPUT FROM USER THEN?
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