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Running EMpro python scripts from an IDE

Question asked by statusbit

on Mar 29, 2016
Latest reply on Apr 5, 2016 by statusbit

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I've been trying to run my EMpro python scripts from the Pycharm IDE. The problem I am having is that I the debugger cannot find the libpyshared.pyd file. The file is there, and the PYTHONPATH environment variable includes the directory where the libpyshared.pyd is located. The interpreter used by the debugger is the python installed by EMpro. For some reason the libpyshared module isn't found. Below is the output of the IDE debugger. Any help would be appreciated.

C:\apps\empro2015_01\win32_64\bin\tools\win32\python\python.exe "C:\Program Files (x86)\JetBrains\PyCharm Community Edition 2016.1\helpers\pydev\pydevd.py" --cmd-line --multiproc --qt-support --client 127.0.0.1 --port 54620 --file C:/data/empro/hpf_12r8_sussub_c/hpf12r8_sussub_c.py
warning: Debugger speedups using cython not found. Run '"C:\apps\empro2015_01\win32_64\bin\tools\win32\python\python.exe" "C:\Program Files (x86)\JetBrains\PyCharm Community Edition 2016.1\helpers\pydev\setup_cython.py" build_ext --inplace' to build.
pydev debugger: process 9184 is connecting

Connected to pydev debugger (build 145.260)
C:\data\empro\library\patterns                            #PYTHONPATH's
C:\apps\empro2015_01\win32_64\bin
C:\data\empro\library\substrates
C:\data\empro\library\tools
C:\data\empro\hpf_12r8_sussub_c
C:\apps\empro2015_01\win32_64\bin\empro
C:\Program Files (x86)\JetBrains\PyCharm Community Edition 2016.1\helpers\pydev
Traceback (most recent call last):
File "C:\Program Files (x86)\JetBrains\PyCharm Community Edition 2016.1\helpers\pydev\pydevd.py", line 1530, in
    globals = debugger.run(setup['file'], None, None, is_module)
File "C:\Program Files (x86)\JetBrains\PyCharm Community Edition 2016.1\helpers\pydev\pydevd.py", line 937, in run
    pydev_imports.execfile(file, globals, locals) # execute the script
File "C:/data/empro/hpf_12r8_sussub_c/hpf12r8_sussub_c.py", line 11, in
    import empro
File "C:\apps\empro2015_01\win32_64\bin\empro\__init__.py", line 2, in
    import libpyshared
ImportError: DLL load failed: The specified module could not be found.

Process finished with exit code 1

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BarrettP

Mar 29, 2016 11:49 AM

Try using the variable PYTHONHOME instead. Or, try running the emproenv / emproenv.bat file (see Keysight Cookbook, pg 7-8) to set EMPRO / HPEESOF_DIR / PYTHONHOME variables all at once.

Note that this may give you a warning (due to the HPEESOF_DIR change) if you are using other Keysight tools.

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statusbit

@ BarrettP on Mar 29, 2016 2:10 PM

Thank you for your reply. Unfortunately assigning the PYTHONHOME, HPEESOF_DIR, and EMPROHOME environment variables didn't work. The IDE debugger finds the empro package directory. The problem occurs in the __init__.py file in the empro package directory. The 'import libpyshared' line cannot find the libpyshared.pyd dll. It should be able to because libpyshared.pyd is in the same directory as __init__.py file! The permissions on this file are wide open so I don't think that is the problem. I am a little bit stumped on this one.

# Copyright 1983-2012 Keysight Technologies, Inc , Keysight Confidential
import libpyshared
from libpyshared import *

import libpyempro
from libpyempro import *


def _empro_at_exit():
    global activeProject
    del activeProject
    output.resultBrowser().clear()

def _empro_init():
    import sys
    import os
    import atexit

    # alias the libpyshared into libpyempro
    for symbol,value in libpyshared.gui.__dict__.iteritems():
        if not symbol.startswith("__"):
            libpyempro.gui.__dict__[symbol] = value

    empro_modules = [module for module in sys.modules if module.startswith('empro.libpyempro.')]
    for module in empro_modules:
        sys.modules[module.replace('libpyempro.', '')] = sys.modules[module]

    if os.getenv('EMPROHOME') is None:
        parent_dir = os.path.join(os.path.dirname(__file__), os.pardir)
        os.environ['EMPROHOME'] = os.path.abspath(parent_dir)

    if os.getenv('HPEESOF_DIR') is None:
        os.environ['HPEESOF_DIR'] = os.environ['EMPROHOME']

    if os.getenv('PYTHONHOME') is None:
        # some python embedders down the road get confused
        os.environ['PYTHONHOME'] = sys.prefix + os.pathsep + sys.exec_prefix

    atexit.register(_empro_at_exit)

    import compatibility
    compatibility.useAll()

    return os.environ['EMPROHOME']

emprohome = _empro_init()

# EOF

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SDauwe

@ statusbit on Apr 1, 2016 1:01 AM

The reason why this does not work is that libpyshared is internal functionality not meant to be used in user space.

The recommended way to use EMPro functions in your python scrips from an IDE is making sure that the IDE has been started from the EMPro environment, like for example:

+*C:\Keysight\EMPro2015_01\win32_64\bin>* emproenv+
+Setting environment for using EMPro's python distribution+
+setting EMPROHOME to C:\Keysight\EMPro2015_01\win32_64\bin+
+setting PYTHONHOME to C:\Keysight\EMPro2015_01\win32_64\bin\tools\win32\python+
+setting HPEESOF_DIR to C:\Keysight\EMPro2015_01\win32_64\bin+

+*C:\Keysight\EMPro2015_01\win32_64\bin>*"C:\Program Files (x86)\JetBrains\PyCharm Community Edition 2016.1\bin\pycharm.exe"+

Python scripts can then import empro without generating import errors.

Is there a special reason why you want to import libpyshared?

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statusbit

@ SDauwe on Apr 5, 2016 3:22 PM

Thank you. I can run Pycharm in the EMPro Environment now. To answer your question about why I wanted to import libpyshared, I was just trying to import the empro package in my python scripts running in Pycharm. I was just wanting to use Pycharm's debugger on my code. I guess I am a little confused about the difference between trying to import empro as a package and running my programs inside the empro environment. Again, thank you. This will help quite a bit.

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4 Replies

BarrettP Mar 29, 2016 11:49 AM
Mark Correct
Correct Answer
Try using the variable PYTHONHOME instead. Or, try running the emproenv / emproenv.bat file (see Keysight Cookbook, pg 7-8) to set EMPRO / HPEESOF_DIR / PYTHONHOME variables all at once.

Note that this may give you a warning (due to the HPEESOF_DIR change) if you are using other Keysight tools.
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- statusbit @ BarrettP on Mar 29, 2016 2:10 PM
  Mark Correct
  Correct Answer
  Thank you for your reply. Unfortunately assigning the PYTHONHOME, HPEESOF_DIR, and EMPROHOME environment variables didn't work. The IDE debugger finds the empro package directory. The problem occurs in the __init__.py file in the empro package directory. The 'import libpyshared' line cannot find the libpyshared.pyd dll. It should be able to because libpyshared.pyd is in the same directory as __init__.py file! The permissions on this file are wide open so I don't think that is the problem. I am a little bit stumped on this one.
  
  # Copyright 1983-2012 Keysight Technologies, Inc , Keysight Confidential
  import libpyshared
  from libpyshared import *
  
  import libpyempro
  from libpyempro import *
  
  
  def _empro_at_exit():
      global activeProject
      del activeProject
      output.resultBrowser().clear()
  
  def _empro_init():
      import sys
      import os
      import atexit
  
      # alias the libpyshared into libpyempro
      for symbol,value in libpyshared.gui.__dict__.iteritems():
          if not symbol.startswith("__"):
              libpyempro.gui.__dict__[symbol] = value
  
      empro_modules = [module for module in sys.modules if module.startswith('empro.libpyempro.')]
      for module in empro_modules:
          sys.modules[module.replace('libpyempro.', '')] = sys.modules[module]
  
      if os.getenv('EMPROHOME') is None:
          parent_dir = os.path.join(os.path.dirname(__file__), os.pardir)
          os.environ['EMPROHOME'] = os.path.abspath(parent_dir)
  
      if os.getenv('HPEESOF_DIR') is None:
          os.environ['HPEESOF_DIR'] = os.environ['EMPROHOME']
  
      if os.getenv('PYTHONHOME') is None:
          # some python embedders down the road get confused
          os.environ['PYTHONHOME'] = sys.prefix + os.pathsep + sys.exec_prefix
  
      atexit.register(_empro_at_exit)
  
      import compatibility
      compatibility.useAll()
  
      return os.environ['EMPROHOME']
  
  emprohome = _empro_init()
  
  # EOF
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  - SDauwe @ statusbit on Apr 1, 2016 1:01 AM
    Mark Correct
    Correct Answer
    The reason why this does not work is that libpyshared is internal functionality not meant to be used in user space.
    
    The recommended way to use EMPro functions in your python scrips from an IDE is making sure that the IDE has been started from the EMPro environment, like for example:
    
    +*C:\Keysight\EMPro2015_01\win32_64\bin>* emproenv+
    +Setting environment for using EMPro's python distribution+
    +setting EMPROHOME to C:\Keysight\EMPro2015_01\win32_64\bin+
    +setting PYTHONHOME to C:\Keysight\EMPro2015_01\win32_64\bin\tools\win32\python+
    +setting HPEESOF_DIR to C:\Keysight\EMPro2015_01\win32_64\bin+
    
    +*C:\Keysight\EMPro2015_01\win32_64\bin>*"C:\Program Files (x86)\JetBrains\PyCharm Community Edition 2016.1\bin\pycharm.exe"+
    
    Python scripts can then import empro without generating import errors.
    
    Is there a special reason why you want to import libpyshared?
    Like • Show 0 Likes0
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    - statusbit @ SDauwe on Apr 5, 2016 3:22 PM
      Mark Correct
      Correct Answer
      Thank you. I can run Pycharm in the EMPro Environment now. To answer your question about why I wanted to import libpyshared, I was just trying to import the empro package in my python scripts running in Pycharm. I was just wanting to use Pycharm's debugger on my code. I guess I am a little confused about the difference between trying to import empro as a package and running my programs inside the empro environment. Again, thank you. This will help quite a bit.
      Like • Show 0 Likes0
      Actions

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