"No module named lex" error

[tomelabs]

Hi There,

This is a great project, thanks for putting it together.
I'm having an error when trying to run the hello.py script from my (windows) python 2.7.x instance:

C:\Python27\python.exe hello.py
Traceback (most recent call last):
  File "hello.py", line 2, in <module>
    from PyZ3950 import zoom
  File "C:\Python27\lib\site-packages\PyZ3950\zoom.py", line 73, in <module>
    from PyZ3950 import ccl
  File "C:\Python27\lib\site-packages\PyZ3950\ccl.py", line 124, in <module>
    import lex
ImportError: No module named lex

any suggestions?

[Kijewski]

You need to pip install ply. The requirement is not installed automatically with PyZ3950.

[tomelabs]

Thanks @Kijewski

Still no luck unfortunately. It successfully imported ply to my C:\Python27\Lib\site-packages but I'm still getting the following. I'll try on my Linux machine later today.

C:\Python27\python.exe hello.py
Traceback (most recent call last):
  File "hello.py", line 2, in <module>
    from PyZ3950 import zoom
  File "C:\Python27\lib\site-packages\PyZ3950\zoom.py", line 73, in <module>
    from PyZ3950 import ccl
  File "C:\Python27\lib\site-packages\PyZ3950\ccl.py", line 124, in <module>
    import lex
ImportError: No module named lex

[MarsitFaycel]

for linux 👍
python2.7.x :sudo apt-get install python-ply
python 3.x: sudo apt-get install python3-ply
https://www.howtoinstall.co/en/ubuntu/utopic/python-ply

how do you do this on Mac ? and I have also ran pip install ply

tried also brew install python-ply and brew install python3-ply with no luck

[cclauss]

Need to python3 -m pip install ply and then modify import lex --> from ply import lex.

https://github.com/asl2/PyZ3950/search?l=Python&q=import+lex