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manifold not defined

asked 2015-06-16 11:27:56 -0500

naveen gravatar image

I installed sage manifold using the command

sudo bash sm-install.sh

And python using the commands

sudo add-apt-repository ppa:fkrull/deadsnakes

sudo apt-get update

sudo apt-get install python2.7

Then checked using

Manifold(2, 'M')

But it shows

name 'Manifold' is not defined

What is the problem?

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answered 2015-06-16 11:37:07 -0500

tmonteil gravatar image

updated 2015-06-16 11:39:55 -0500

SageManifolds is not working with python 2.7 only, you should install it within Sage. Currently, Sage is shipping Python 2.7 by default, so the only things you have to do is:

  • install Sage
  • put sm-install.sh script within the root directory of your Sage installation
  • run bash sm-install.sh
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Thank you for your answer. It shows

sys:1: RuntimeWarning: not adding '/usr/lib/sagemath/src/doc/common' to sys.path since its status cannot be determined

python: can't open file '/usr/lib/sagemath/src/doc/common/builder.py': [Errno 2] No such file or directory

sys:1: RuntimeWarning: not adding '/usr/lib/sagemath/src/doc/common' to sys.path since its status cannot be determined

python: can't open file '/usr/lib/sagemath/src/doc/common/builder.py': [Errno 2] No such file or directory

naveen gravatar imagenaveen ( 2015-06-16 12:07:57 -0500 )edit

How did you install Sage ? Can you start Sage ? If you go to the /usr/lib/sagemath directory, whant does the ./sage command give ?

tmonteil gravatar imagetmonteil ( 2015-06-16 14:16:59 -0500 )edit

SageMath Version 6.7, Release Date: 2015-05-17

Type "notebook()" for the browser-based notebook interface.

Type "help()" for help.

sage:

naveen gravatar imagenaveen ( 2015-06-17 03:40:10 -0500 )edit

This looks good. So, then, when you type Manifold(2, 'M') you get an error while you run the sm-install.sh script ?

tmonteil gravatar imagetmonteil ( 2015-06-17 12:08:12 -0500 )edit

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Asked: 2015-06-16 11:27:56 -0500

Seen: 151 times

Last updated: Jun 16 '15