Path problems when I am in bash

[Karim]

On 30/12/2015 00:21, xeon Mailinglist wrote:
> I have my source code inside the directory `medusa`, and my unit tests inside `tests` dir. Both dirs are inside `medusa-2.0` dir. Here is my file structure [1].
>
> When I run my tests inside pycharm, everything works fine, but when I try to run my unit tests inside in the prompt [2], the `scheduler/predictionranking.py` can't find the `hdfs` import [3]. I have set my environment inside the `medusa-2.0` dir with the virtualenv, I even have set `medusa-2.0` in the PYTHON_PATH [4]. The error that I have is in [5].
>
> The question is, why the import is not being done correctly?
>
>
> [1] My file structure
>
> medusa-2.0$
> medusa (source code)
>     hdfs.py
>     scheduler (dir with my schedulers)
>         predictionranking.py
> tests (my unit tests)
>
>
> [2] I run the unit test like this.
>
> medusa-2.0$ python -v tests/testSimpleRun.py
>
>
> [3] The header in `predictionranking.py`
>
> import hdfs
>
> def get_prediction_metrics(clusters, pinput):
>      """
>      :param pinput (list) list of input paths
>
>      """
>
>      input_size = hdfs.get_total_size(pinput)
>
> [4] My python path
>
>      export MEDUSA_HOME=$HOME/repositories/git/medusa-2.0
>
>      export PYTHONPATH=${PYTHONPATH}:${MEDUSA_HOME}/medusa
>
> [5] error that I have
>
> medusa-2.0$ python -v tests/testSimpleRun.py
> # /home/xeon/repositories/git/medusa-2.0/medusa/local.pyc matches /home/xeon/repositories/git/medusa-2.0/medusa/local.py
> import medusa.local # precompiled from /home/xeon/repositories/git/medusa-2.0/medusa/local.pyc
> # /home/xeon/repositories/git/medusa-2.0/medusa/ranking.pyc matches /home/xeon/repositories/git/medusa-2.0/medusa/ranking.py
> import medusa.ranking # precompiled from /home/xeon/repositories/git/medusa-2.0/medusa/ranking.pyc
> # /home/xeon/repositories/git/medusa-2.0/medusa/decors.pyc matches /home/xeon/repositories/git/medusa-2.0/medusa/decors.py
> import medusa.decors # precompiled from /home/xeon/repositories/git/medusa-2.0/medusa/decors.pyc
> # /home/xeon/repositories/git/medusa-2.0/medusa/settings.pyc matches /home/xeon/repositories/git/medusa-2.0/medusa/settings.py
> import medusa.settings # precompiled from /home/xeon/repositories/git/medusa-2.0/medusa/settings.pyc
> import medusa.scheduler # directory /home/xeon/repositories/git/medusa-2.0/medusa/scheduler
> # /home/xeon/repositories/git/medusa-2.0/medusa/scheduler/__init__.pyc matches /home/xeon/repositories/git/medusa-2.0/medusa/scheduler/__init__.py
> import medusa.scheduler # precompiled from /home/xeon/repositories/git/medusa-2.0/medusa/scheduler/__init__.pyc
> # /home/xeon/repositories/git/medusa-2.0/medusa/scheduler/predictionranking.pyc matches /home/xeon/repositories/git/medusa-2.0/medusa/scheduler/predictionranking.py
> import medusa.scheduler.predictionranking # precompiled from /home/xeon/repositories/git/medusa-2.0/medusa/scheduler/predictionranking.pyc
> Traceback (most recent call last):
>    File "tests/simpleRun.py", line 4, in <module>
>      from medusa.simplealgorithm import run_simple_execution
>    File "/home/xeon/repositories/git/medusa-2.0/medusa/simplealgorithm.py", line 8, in <module>
>      import accidentalfaults
>    File "/home/xeon/repositories/git/medusa-2.0/medusa/accidentalfaults.py", line 5, in <module>
>      import hdfs
>    File "/home/xeon/repositories/git/medusa-2.0/medusa/hdfs.py", line 6, in <module>
>      from system import execute_command
>    File "/home/xeon/repositories/git/medusa-2.0/medusa/system.py", line 10, in <module>
>      from ranking import rank_clusters
>    File "/home/xeon/repositories/git/medusa-2.0/medusa/ranking.py", line 9, in <module>
>      from scheduler.predictionranking import get_prediction_metrics
>    File "/home/xeon/repositories/git/medusa-2.0/medusa/scheduler/predictionranking.py", line 6, in <module>
>      import hdfs

Hello,

Can you try to set your PYTHONPATH like that:

export PYTHONPATH=${PYTHONPATH}:${MEDUSA_HOME}

Regards
Karim