'Invalid syntax' error when importing torch (Linux) - linux

I'm trying to install torch under miniconda and simple import torch gives me the following error:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/vol/tcm17/username/miniconda3/lib/python3.8/site-packages/torch/__init__.py", line 779, in <module>
from .serialization import save, load
File "/vol/tcm17/username/miniconda3/lib/python3.8/site-packages/torch/serialization.py", line 18, in <module>
from typing_extensions import TypeAlias
File "/home/username/.local/lib/python3.8/site-packages/typing_extensions.py", line 880
if stripped_args
Interestingly, if I repeat import torch again the error message changes:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/vol/tcm17/username/miniconda3/lib/python3.8/site-packages/torch/__init__.py", line 249, in <module>
for name in dir(_C):
NameError: name '_C' is not defined
I'm not using notebooks, python version is 3.8.16, pytorch version is 1.13.1. Miniconda is installed in a local folder (it's a university server so I can only do it like this due to disk space restrictions), the server runs on Ubuntu.
What could possibly be the problem?
The only recommendation I found for similar problems is to install Cython but it didn't help.

Downgraded to python 3.6 and this somehow solved the problem.

Related

ImportError DLL load failed while importing fasttext_corpusfile

When I try to import gensim, I get the below error:
Traceback (most recent call last):
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python38\lib\site-packages\gensim\models\fasttext.py", line 264, in <module>
from gensim.models.fasttext_corpusfile import train_epoch_sg, train_epoch_cbow
ImportError: DLL load failed while importing fasttext_corpusfile: The specified module could not be found.
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python38\lib\site-packages\gensim\__init__.py", line 11, in <module>
from gensim import parsing, corpora, matutils, interfaces, models, similarities, utils # noqa:F401
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python38\lib\site-packages\gensim\models\__init__.py", line 22, in <module>
from .fasttext import FastText # noqa:F401
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python38\lib\site-packages\gensim\models\fasttext.py", line 266, in <module>
raise utils.NO_CYTHON
RuntimeError: Compiled extensions are unavailable. If you've installed from a package, ask the package maintainer to include compiled extensions. If you're building Gensim from source yourself, install Cython and a C compiler, and then run `python setup.py build_ext --inplace` to retry.
My computer is Windows Server 2022 Data Center, python is 3.8.10, gensim is 4.2.0.
How can I solve this problem? Thank you for your help.
I re-installed gensim (gensim-4.2.0-cp39-cp39-win_amd64.whl) from https://pypi.org/project/gensim/#files, but still had the above problem.

autosklearn installation. Error: No module named 'sklearn.metrics.classification'

I'm trying to execute a script that uses Scikit and autosklearn on Ubuntu 20, python 3.8
I have followed the instructions to install sckit https://scikit-learn.org/stable/install.html and autosklearn installation https://automl.github.io/auto-sklearn/master/installation.html
However I'm getting
Exception ignored in: <function AutoML.__del__ at 0x7f37c6ee9160>
Traceback (most recent call last):
File "/usr/local/lib/python3.8/dist-packages/autosklearn/automl.py", line 1380, in __del__
self._backend.context.delete_directories(force=False)
AttributeError: 'AutoMLClassifier' object has no attribute '_backend'
Traceback (most recent call last):
File "myscript.py", line 261, in <module>
import model_snow_magn_only_package
File "/myfolder/myscript.py", line 150, in <module>
clf = pickle.load(open(model_name, "rb"))
ModuleNotFoundError: No module named 'sklearn.metrics.classification'
I have tried other releases of these packages but without success.
Does anyone have an idea of which releases/packages to install to make it work?

Why does a DLL error appear when importing tensorflow?

I recently got a new 64-bit windows 10 and installed pycharm. The pycharm I am using is Python 3.8.
When I installed tensorflow by running the command line, it worked fine. However, when I imported on my pycharm file (i.e. import tensorflow as tf), it produced an error as such:
Traceback (most recent call last):
File "C:\Users\leode\anaconda3\envs\Science Fair\lib\site-packages\tensorflow\python\pywrap_tensorflow.py", line 64, in <module>
from tensorflow.python._pywrap_tensorflow_internal import *
ImportError: DLL load failed while importing _pywrap_tensorflow_internal: The specified module could not be found.
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:/Users/leode/PycharmProjects/Science Fair/project.py", line 1, in <module>
import tensorflow as tf
File "C:\Users\leode\anaconda3\envs\Science Fair\lib\site-packages\tensorflow\__init__.py", line 41, in <module>
from tensorflow.python.tools import module_util as _module_util
File "C:\Users\leode\anaconda3\envs\Science Fair\lib\site-packages\tensorflow\python\__init__.py", line 40, in <module>
from tensorflow.python.eager import context
File "C:\Users\leode\anaconda3\envs\Science Fair\lib\site-packages\tensorflow\python\eager\context.py", line 35, in <module>
from tensorflow.python import pywrap_tfe
File "C:\Users\leode\anaconda3\envs\Science Fair\lib\site-packages\tensorflow\python\pywrap_tfe.py", line 28, in <module>
from tensorflow.python import pywrap_tensorflow
File "C:\Users\leode\anaconda3\envs\Science Fair\lib\site-packages\tensorflow\python\pywrap_tensorflow.py", line 83, in <module>
raise ImportError(msg)
ImportError: Traceback (most recent call last):
File "C:\Users\leode\anaconda3\envs\Science Fair\lib\site-packages\tensorflow\python\pywrap_tensorflow.py", line 64, in <module>
from tensorflow.python._pywrap_tensorflow_internal import *
ImportError: DLL load failed while importing _pywrap_tensorflow_internal: The specified module could not be found.
Failed to load the native TensorFlow runtime.
However when I import tensorboard_plugin_wit:
import tensorboard_plugin_wit
It works fine.
What went wrong? If any of you need any further clarification, please comment- I'm not much of an expert on handling computers so I will do my best to answer:)
I figured out what the problem was. Unlike many third-party modules in python, installing tensorflow requires more than simply pip install . The way I installed tensorflow was by creating and activating a conda environment. For more information on how to install tensorflow via Pycharm, here is a helpful Youtube video: https://www.youtube.com/watch?v=5Ym-dOS9ssA&t=327s

unable to run a python file because of Module not found error despite sourcing the pythonpath

I have been trying to run a python file using rosrun command but unfortunately I am having this module not found error because of a package named rospkg. Until a day before yesterday, it was all working fine but yesterday, ubuntu18.04 has got some updates out of which an update for ubuntu base was also present, since that update I am having this error.
I have tried to check whether I have installed the respective python-rospkg and its says I already have the latest version. I have also using
echo $PYTHONPATH
to check the sourced paths and they are sourced correct, I am not sure whats causing this error.
the error is as follows
Traceback (most recent call last
File
"/home/microbot/catkin_ws/src/spider/spider_control/control.py",
line 5, in <module>
import roslib
File "/opt/ros/melodic/lib/python2.7/dist-
packages/roslib/__init__.py", line 50, in <module>
from roslib.launcher import load_manifest
File "/opt/ros/melodic/lib/python2.7/dist-
packages/roslib/launcher.py", line 42, in <module>
import rospkg
ModuleNotFoundError: No module named 'rospkg'
The shebang for my is as follows,
#!/usr/bin/python3
When i try to run the file by changing the shebang to
#!/usr/bin/python2.7
I get the following error
Traceback (most recent call last):
File
"/home/microbot/catkin_ws/src/spider/spider_control/control.py",
line 3, in <module>
import tensorflow as tf
ImportError: No module named tensorflow
I have installed tensorflow version 1.14 using pip installation. Can anyone please help me solving this error. Thanks in advance
edit:
I have manually tried to set the python path to /usr/lib/python2.7/dist-packages as when I tried to install python-rospkg, it says the its already instaled in that location. Doing that I am having error importing tensorflow and the error is
`Traceback (most recent call last):
File
"/home/microbot/catkin_ws/src/spider/spider_control/control.py", line
3, in <module>
import tensorflow as tf
File "/home/microbot/.local/lib/python3.6/site-
packages/tensorflow/__init__.py", line 22, in <module>
import inspect as _inspect
File "/usr/lib/python3.6/inspect.py", line 41, in <module>
import linecache
File "/usr/lib/python3.6/linecache.py", line 11, in <module>
import tokenize
File "/usr/lib/python3.6/tokenize.py", line 33, in <module>
import re
File "/usr/lib/python3.6/re.py", line 142, in <module>
class RegexFlag(enum.IntFlag):
AttributeError: module 'enum' has no attribute 'IntFlag'
Error in sys.excepthook:`

Theano Import Error, python 3.6 windows 10

I'm trying to import theano and I'm getting an import error.
I've seen common issues with theano relate to not having g++, mingw, or libpython installed. I can confirm I have all three installed. g++ 4.7.0, mingw 4.7, libpython 2.1, and theano 1.0.1.
Any suggestions on what to chase down next? I'm a little stumped.
When I run a simple python (3.6) file trying to import theano I get the following:
You can find the C code in this temporary file: C:\Users\CAVEJO~1\AppData\Local\Temp\theano_compilation_error_1b3hfusl
Traceback (most recent call last):
File "C:\Users\Cave Johnson\AppData\Local\Programs\Python\Python36-32\lib\site-packages\theano\gof\lazylinker_c.py", line 75, in <module>
raise ImportError()
ImportError
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Users\Cave Johnson\AppData\Local\Programs\Python\Python36-32\lib\site-packages\theano\gof\lazylinker_c.py", line 92, in <module>
raise ImportError()
ImportError
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Users\Cave Johnson\AppData\Local\Programs\Python\Python36-32\Projects\Pandas\housing_prices.py", line 4, in <module>
import theano
File "C:\Users\Cave Johnson\AppData\Local\Programs\Python\Python36-32\lib\site-packages\theano\__init__.py", line 110, in <module>
from theano.compile import (
File "C:\Users\Cave Johnson\AppData\Local\Programs\Python\Python36-32\lib\site-packages\theano\compile\__init__.py", line 12, in <module>
from theano.compile.mode import *
File "C:\Users\Cave Johnson\AppData\Local\Programs\Python\Python36-32\lib\site-packages\theano\compile\mode.py", line 11, in <module>
import theano.gof.vm
File "C:\Users\Cave Johnson\AppData\Local\Programs\Python\Python36-32\lib\site-packages\theano\gof\vm.py", line 673, in <module>
from . import lazylinker_c
File "C:\Users\Cave Johnson\AppData\Local\Programs\Python\Python36-32\lib\site-packages\theano\gof\lazylinker_c.py", line 127, in <module>
preargs=args)
File "C:\Users\Cave Johnson\AppData\Local\Programs\Python\Python36-32\lib\site-packages\theano\gof\cmodule.py", line 2359, in compile_str
(status, compile_stderr.replace('\n', '. ')))
Exception: Compilation failed (return status=1): The system cannot find the path specified.
.
I had the same issue, and it came down to missing dependencies.
This seemed to be the key for me:
conda install numpy scipy mkl-service libpython m2w64-toolchain
conda install -c conda-forge blas
See https://github.com/Theano/Theano/issues/6532 or more details.

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