Broken Anaconda, please help! ModuleNotFoundError: No module named 'pycosat'

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sydneyat...@gmail.com

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Jun 25, 2017, 11:51:02 PM6/25/17
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Could someone please help me repair my anaconda so that I can use spyder? My pycharm app is acting up too. I'm really need to programing so I really appreciate the help. Thank you!


Last login: Sun Jun 25 23:36:32 on ttys003

MacBook-Pro:~ sydneyberger$ conda info

MacBook-Pro:~ sydneyberger$ conda list

Traceback (most recent call last):

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/exceptions.py", line 632, in conda_exception_handler

    return_value = func(*args, **kwargs)

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/cli/main.py", line 105, in _main

    p, sub_parsers = generate_parser()

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/cli/main.py", line 51, in generate_parser

    from ..cli import conda_argparse

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/cli/conda_argparse.py", line 14, in <module>

    from .common import add_parser_help

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/cli/common.py", line 21, in <module>

    from ..resolve import MatchSpec

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/resolve.py", line 12, in <module>

    from .logic import Clauses, minimal_unsatisfiable_subset

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/logic.py", line 32, in <module>

    import pycosat

ModuleNotFoundError: No module named 'pycosat'


During handling of the above exception, another exception occurred:


Traceback (most recent call last):

  File "/Users/sydneyberger/anaconda/bin/conda", line 6, in <module>

    sys.exit(conda.cli.main())

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/cli/main.py", line 179, in main

    return conda_exception_handler(_main, *args)

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/exceptions.py", line 636, in conda_exception_handler

    return handle_exception(e)

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/exceptions.py", line 626, in handle_exception

    print_unexpected_error_message(e)

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/exceptions.py", line 587, in print_unexpected_error_message

    from .cli.main_info import get_info_dict, get_main_info_str

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/cli/main_info.py", line 18, in <module>

    from .common import add_parser_json, add_parser_offline, arg2spec, handle_envs_list, stdout_json

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/cli/common.py", line 21, in <module>

    from ..resolve import MatchSpec

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/resolve.py", line 12, in <module>

    from .logic import Clauses, minimal_unsatisfiable_subset

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/logic.py", line 32, in <module>

    import pycosat

ModuleNotFoundError: No module named 'pycosat'

MacBook-Pro:~ sydneyberger$ conda update anaconda-navigator

Traceback (most recent call last):

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/exceptions.py", line 632, in conda_exception_handler

    return_value = func(*args, **kwargs)

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/cli/main.py", line 105, in _main

    p, sub_parsers = generate_parser()

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/cli/main.py", line 51, in generate_parser

    from ..cli import conda_argparse

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/cli/conda_argparse.py", line 14, in <module>

    from .common import add_parser_help

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/cli/common.py", line 21, in <module>

    from ..resolve import MatchSpec

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/resolve.py", line 12, in <module>

    from .logic import Clauses, minimal_unsatisfiable_subset

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/logic.py", line 32, in <module>

    import pycosat

ModuleNotFoundError: No module named 'pycosat'


During handling of the above exception, another exception occurred:


Traceback (most recent call last):

  File "/Users/sydneyberger/anaconda/bin/conda", line 6, in <module>

    sys.exit(conda.cli.main())

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/cli/main.py", line 179, in main

    return conda_exception_handler(_main, *args)

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/exceptions.py", line 636, in conda_exception_handler

    return handle_exception(e)

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/exceptions.py", line 626, in handle_exception

    print_unexpected_error_message(e)

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/exceptions.py", line 587, in print_unexpected_error_message

    from .cli.main_info import get_info_dict, get_main_info_str

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/cli/main_info.py", line 18, in <module>

    from .common import add_parser_json, add_parser_offline, arg2spec, handle_envs_list, stdout_json

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/cli/common.py", line 21, in <module>

    from ..resolve import MatchSpec

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/resolve.py", line 12, in <module>

    from .logic import Clauses, minimal_unsatisfiable_subset

  File "/Users/sydneyberger/anaconda/lib/python3.6/site-packages/conda/logic.py", line 32, in <module>

    import pycosat

ModuleNotFoundError: No module named 'pycosat'

MacBook-Pro:~ sydneyberger$ 


Will Warner

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Jun 27, 2017, 2:04:08 PM6/27/17
to Anaconda - Public, sydneyat...@gmail.com
What output do you see if you run this command?

conda install pycosat

Ian Stokes Rees

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Jun 27, 2017, 2:35:31 PM6/27/17
to anac...@continuum.io

Something weird has happened if you’re missing pycosat. I would recommend you try doing:

conda install anaconda=4.4

which should get all your packages up to date.

It would be interesting to know where things got mixed up so pycosat disappeared. You can also do:

env | sort | grep -i -e conda -e python

and share the output with us, which may provide some insights.

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Ian Stokes-Rees, PhD
Computational Scientist
1.617.942.0218
ijst...@continuum.io
@ContinuumIO @ijstokes

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