can I import the module twice (under differnet names)

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  • alf
    #1

    can I import the module twice (under differnet names)

    Hi,

    wonder if in the python I could treat modules imorts like classes
    instances. It means I could import it twice or more times under
    different names.

    --
    alfz1
    Tags: None
    • Ben Finney
      #2
      Re: can I import the module twice (under differnet names)

      alf <ask@me.xs4all. nlwrites:
      wonder if in the python I could treat modules imorts like classes
      instances. It means I could import it twice or more times under
      different names.
      No need to import more than once. The 'import' statement binds a
      module object to the specified name, and you can bind as many names as
      you like to the same object.
      >>import sys
      >>foo = sys
      >>bar = sys
      >>print sys.maxint
      2147483647
      >>print foo.maxint
      2147483647
      >>print bar.maxint
      2147483647

      --
      \ "Laugh and the world laughs with you; snore and you sleep |
      `\ alone." -- Anonymous |
      _o__) |
      Ben Finney

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        • Thomas Nelson
          #3
          Re: can I import the module twice (under differnet names)

          alf wrote:
          Hi,
          >
          wonder if in the python I could treat modules imorts like classes
          instances. It means I could import it twice or more times under
          different names.
          >
          --
          alfz1
          You can always give any object as many names as you want:
          >>import sys
          >>s1 = sys
          >>s2 = sys
          >>s1.path
          ['', '/usr/local/bin', '/bin', '/sbin', '/usr/bin', '/usr/sbin',...
          >>s2.argv
          ['']

          Or maybe you're looking for the builtin function reload?
          >>import this
          The Zen of Python, by Tim Peters

          Beautiful is better than ugly.
          ....
          >>import this #note nothing happens
          >>reload(this ) #runs again
          The Zen of Python, by Tim Peters

          Beautiful is better than ugly.
          .....


          Neither one of these methods are too common in practice I think. Could
          you tell us why you want to import a module more than once?
          -Tom

            Comment

            • Steve Holden
              #4
              Re: can I import the module twice (under differnet names)

              alf wrote:
              Hi,
              >
              wonder if in the python I could treat modules imorts like classes
              instances. It means I could import it twice or more times under
              different names.
              >
              If you want to repeat the full import, and have each imported version
              get an independent namespace as well as independent code objects and so
              on then you will have to somehow persuade the interpreter that they come
              from different files, I believe.

              If you just want to be able to use several names to refer to the same
              module then you have already had a coupe of good answers.

              regards
              Steve
              --
              Steve Holden +44 150 684 7255 +1 800 494 3119
              Holden Web LLC/Ltd http://www.holdenweb.com
              Skype: holdenweb http://holdenweb.blogspot.com
              Recent Ramblings http://del.icio.us/steve.holden

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