Error in importing pygimli

[hazqial27]

Hello,

I am a really beginner in python, now I am learning about data processing and inversion of seismic refraction data, then I got "refrapy" python based program that use pygimli on it.

I have a problem when I run the refrapy program, there is error in importing pygimli, it said that 'no module named pygimli'

here is the code

##Refrapy - Seismic Refraction Data Analysis
##Refrainv - Data inversion
##Author: Victor Guedes, MSc
##E-mail: vjs279@hotmail.com

from matplotlib import pyplot as plt
from matplotlib.path import Path
from matplotlib.patches import PathPatch
from mpl_toolkits.axes_grid1 import make_axes_locatable
from matplotlib.lines import Line2D
from matplotlib.colors import is_color_like
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg, NavigationToolbar2TkAgg
from mpl_toolkits.mplot3d.art3d import Poly3DCollection
from tkinter import Tk, Toplevel, Frame, Button, Label, filedialog, messagebox, PhotoImage, simpledialog, Entry
from os import path, makedirs, getcwd
from obspy import read
from obspy.signal.filter import lowpass, highpass
from scipy.signal import resample
from scipy.interpolate import interp1d,griddata
from numpy import array, where, polyfit, linspace, meshgrid, column_stack, c_, savetxt, shape,reshape,concatenate, hstack, linalg, mean, sqrt, zeros, arange, linspace, square, sort, unique
from numpy import all as np_all
from Pmw import initialise, Balloon
import pygimli as pg
from pygimli.physics import TravelTimeManager

etc

and this is the result after I run the program above

Python 3.4.4 (v3.4.4:737efcadf5a6, Dec 20 2015, 20:20:57) [MSC v.1600 64 bit (AMD64)] on win32
Type "copyright", "credits" or "license()" for more information.
>>> 
======= RESTART: C:\Users\Hazqial\Programs\Refrapy-master\Refrainv.py =======
Traceback (most recent call last):
  File "C:\Users\Hazqial\Programs\Refrapy-master\Refrainv.py", line 23, in <module>
    import pygimli as pg
ImportError: No module named 'pygimli'
>>> 

So, I try to install pygimli library, using conda by conda create -n pg -c gimli -c conda-forge pygimli=1.2.1, then activate pg by conda activate pg. I think it has done, then I test using python -c "import pygimli; pygimli.test(show=False, onlydoctests=True)", and there are many errors happen, like this

(pg) PS C:\Users\OWNER> python -c "import pygimli; pygimli.test(show=False, onlydoctests=True)"
DLL load failed while importing _pygimli_: A dynamic link library (DLL) initialization routine failed.
Traceback (most recent call last):
  File "C:\ProgramData\Anaconda3\envs\pg\lib\site-packages\pygimli\core\core.py", line 11, in <module>
    from . import _pygimli_  # if it works: as pgcore, replace all _pygimli_
ImportError: cannot import name '_pygimli_' from partially initialized module 'pygimli.core' (most likely due to a circular import) (C:\ProgramData\Anaconda3\envs\pg\lib\site-packages\pygimli\core\__init__.py)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\ProgramData\Anaconda3\envs\pg\lib\site-packages\pgcore\__init__.py", line 20, in <module>
    from ._pygimli_ import *
ImportError: DLL load failed while importing _pygimli_: A dynamic link library (DLL) initialization routine failed.
ERROR: cannot import the library '_pygimli_'.
Traceback (most recent call last):
  File "C:\ProgramData\Anaconda3\envs\pg\lib\site-packages\pygimli\core\core.py", line 11, in <module>
    from . import _pygimli_  # if it works: as pgcore, replace all _pygimli_
ImportError: cannot import name '_pygimli_' from partially initialized module 'pygimli.core' (most likely due to a circular import) (C:\ProgramData\Anaconda3\envs\pg\lib\site-packages\pygimli\core\__init__.py)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "C:\ProgramData\Anaconda3\envs\pg\lib\site-packages\pygimli\__init__.py", line 8, in <module>
    from .core.decorators import (renamed, singleton)
  File "C:\ProgramData\Anaconda3\envs\pg\lib\site-packages\pygimli\core\__init__.py", line 12, in <module>
    from .core import pgcore
  File "C:\ProgramData\Anaconda3\envs\pg\lib\site-packages\pygimli\core\core.py", line 21, in <module>
    from .pgcore import *
ModuleNotFoundError: No module named 'pygimli.core.pgcore'
(pg) PS C:\Users\OWNER>`

I don't know is it right I ask the question here, but hopefully I got the answer how to fix it. So, I can continue using the program.

thank you

[halbmy]

First, the originally used Python version 3.4 is far too old and not supported anymore (we even stopped supporting Python 3.7!). However, the environment installes a newer version. Can you please try the newest version 1.2.6 (that should come by default when omitting the version number) and tell whether it is working?

[hazqial27]

Actually I use version 3.4.4 because the refrapy program recommends it. I think it is outdated program, so there are many errors installing module from environment, I don't know.
But I will try your suggestion first, and show if it is working. Thank you.

[halbmy]

You will NOT be able to use pyGIMLi in Python 3.4. Please have a look whether refrapy can be used in modern Python versions.

[hazqial27]

I've tried to use a newer version of python (3.9), then I install again the pygimli library from website https://anaconda.org/gimli/pygimli using this code conda install -c gimli pygimli and this is the result

Collecting package metadata (current_repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source.
Collecting package metadata (repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Solving environment: -
Found conflicts! Looking for incompatible packages.
This can take several minutes.  Press CTRL-C to abort.
failed

UnsatisfiableError: The following specifications were found
to be incompatible with the existing python installation in your environment:

Specifications:

  - pygimli -> python[version='>=3.6,<3.7.0a0|>=3.7,<3.8.0a0|>=3.8,<3.9.0a0']

Your python: python=3.9

If python is on the left-most side of the chain, that's the version you've asked for.
When python appears to the right, that indicates that the thing on the left is somehow
not available for the python version you are constrained to. Note that conda will not
change your python version to a different minor version unless you explicitly specify
that.

Now, how to fix it? Do I need the older version of python? Thankyou

[halbmy]

On Windows, you are currently fixed to Python 3.8. Try not fixing the python version and it should be automatically 3.8 (at least if you specify the pygimli version 1.2.6).

[halbmy]

From pyGIMLi 1.4 on, we switched to Python 3.9 as supported versions for pgcore. In the future, we will again provide several versions like 3.8, 3.9, 3.10 and 3.11.