I installed meshpy (using python 2.7) following the instructions here on my ubuntu 16.04 LTS and trying to run examples from here after browsing into the directory of meshpy. Part of the example that I'm trying to run is below:
from __future__ import division
from __future__ import absolute_import
import meshpy.triangle as triangle
but I keep getting error No module named meshpy._triangle
Does anyone have a hint of what I might be missing ?
Likely you have created file named meshpy within your python package, which leads to the module shadowing, renaming your file shall fix the problem.
See more by next links:
The name shadowing trap
Python: Problem with local modules shadowing global modules
After an entire day of labor I realized the python packages that I had were not correct and causing conflicts. To begin with here is the link to the installation documentation of meshpy which I followed Here is a pointwise summary of what I realized caused problem
Step 1 says download the file, unzip it using the command given in the doc, and browse to the directory 'MeshPy-XXXXX', where 'XXXXX' refers to the version.
The issue in this step is that a file called CMakeList.txt is missing in this directory and while configuring in step 2 the system complains about the missing file.
The solution is to download the git version instead of the direct download as mentioned in the second part of step1 or manually copy the file CMakeList.txt into the MeshPy-XXXXX directory. I chose the latter solution.
In step 2 asks us to browse to the directory and issue the command ./configure on the terminal. This didn't work for me. The directory contains a script called configure.py . Hence instead I issued python3.5 configure.py
If you issue python configure.py and python calling python2.7 then you should make sure python2.7 has matplotlib, numpy installed as meshpy depends on these packages
The last of step2 where you need to issue command python setup.py install is a tricky part where things went crazy for me. Firstly, I issued python setup.py but what I should have done is issuing python3.5 setup.py (or better creating an alias to python3.5 in bash).
When I pinned down the mistake, I started getting another error both with python2.7 and python3.5, last three lines of which looks like below :
bpl-subset/bpl_subset/boost/python/detail/wrap_python.hpp:50:23: fatal error: pyconfig.h: No such file or directory
compilation terminated.
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
When I looked up stackoverflow for possible similar errors, I came across this article and used the second solution in the post and installed python2.7-dev/python3.5-dev which solved the problem .
Go to the installation page and click on 'Download MeshPy' link. Click on 'Download Files'. Download the tar file. Unzip it. Then copy the 'meshpy' folder and paste it inside your python lib directory where other packages are stored. Hope it will solve the problem.
Related
I'm working on linux ubuntu 20.04. I opened new python project using Pycharm IDE, and I've installed a package called aihwkit, the documentation and the source.
When running the examples given with the source code, which use modules imported from a directory called inference such as example 06_lenet5_hardware_aware.py I'm getting an error:
ModuleNotFoundError: No module named 'aihwkit.inference'
although other folders, in the same directory as inference are imported as well and they work well. I'm trying to import this manually, but not sure how to do it.
This is the hierarchy of the folders: I'm calling inference like this:
from aihwkit.inference import PCMLikeNoiseModel
from the file examples/06_lenet5_hardware_aware.py when the module PCMLikeNoiseModel source code lies in the following path: src/aihwkit/inference/noise/pcm.py
please note that the problem is that the name aihwkit.inference is not found, while other names such as aihwkit.nn do not raise any error, and they reside in similar path to inference.
I'm adding a picture of the hierarchy in case it helps:
how can I import this folder manually?
Thank you
Since you're on Linux, you can try to install your package before importing it with:
sudo apt-get install python-#name_of_your_package
written in your terminal, or you can try to install it with pip
I generated a .whl file following this link:
https://dzone.com/articles/executable-package-pip-install
Now i am installing the package on my own machine to check if package is successfully installed. It installs successfully.
But the thing is when i import it, it gives, "ModuleNotFoundError" exception.
What i want to know is that how do i verify the .whl file is correctly generated and usable?
Please Help i am stuck here for 2 days.
Here's my Setup.py file
And here's my package directory structure:
Here's output of my build script:
Here's my stacktrace of import error:
You've declared TestFunc as a script (to be run from the command line), not a module. (I bet you haven't tried import TestFunc without packaging things into a wheel.)
If you're trying to build a wheel that will install an importable module, you'll want to rename TestFunc to TestFunc.py (like you'd do with any old Python module!) and then use
setup(
# ...
py_modules=["TestFunc"],
)
(and probably eventually packages=...) when your project grows, but that's beside the point)
.
If you're actually looking to have TestFunc being a script run from the command line, scripts is the right thing, but the script will have to be something your shell can understand – see the packaging guide here for the gist of it.
I'm running a code on deep learning, which uses the opencv module, by running python main.py (contains import cv2 statement), but always get the error 'ImportError: dynamic module does not define module export function (PyInit_cv2)'.
I've tried to reinstall my anaconda and create new virtual environments, but all got the same result. This problem really confuses me a lot and I've googled for many related problems, none of them works. I think the problem is something related to the environment and has nothing to do with the code, because I got the same result by simply run import cv2 in python prompt. The more confusing thing is that, even after I remove the opencv module, I also get the same problem, but not a ModuleNotFoundError. Does anyone can give me some advice? Thanks a lot!
I think I found one possible reason of this error.
Recently I was configuring the caffe environment on one server, I downloaded the source code of opencv-2.4.13 and compiled manually, added /usr/local/opencv-2.4.13/build/lib to $PYTHONPATH, and caffe worked well. After that, when I entered one of my virtual environment using conda activate py35, which uses python3.5, tried import cv2 in the python prompt, got the error above.
I'm not sure but I think the cause of the error is opencv-2.4.13 compiles a python2 interface so it can't be imported by python3. Python imports packages by searching the directories listed in sys.path, where $PYTHONPATH is in the second place after the current working directory (This is a great article introduces the mechanism of python finding packages). So when we enter the py35 environment, python will first look for $PYTHONPATH and find the opencv installed on the root directory instead of finding the opencv in the virtual environment using conda install opencv-python.
So there are two solutions of this problem:
Use python2 instead.
Remove /usr/local/opencv-2.4.13/build/lib from $PYTHONPATH.
which all work for me.
Similar post, might help:
ImportError: dynamic module does not define init function (initfizzbuzz)
Could you provide info on how you installed the CV module?
I had the same problem, which was caused by the cv2.so file in /usr/local/lib/python2.7/site-packages/cv2.so. After I deleted the file and use command sudo pip3 install opencv-python, it worked for python3.
I'm having a problem with this package that I installed in Python 3.5. After installing it, I try to run requestProxy.py but it won't import any of its own packages. Here's what I did, and what's happening.
I cloned it and created a private repo using these instructions.
I installed in an activated virtualenv, created without using sudo, using:
pip3 install -e HTTP_Proxy_Randomizer
Terminal said it installed ok.
I can find the egg link in my virtualenv's site-packages folder, but when I try to run the main file, it says:
from project.http.requests.parsers.freeproxyParser import freeproxyParser
ImportError: No module named project.http.requests.parsers.freeproxyParser
I had to write a setup.py for the package, which didn't seem to come with its own. I came up with:
setup(name='HTTP_Request_Randomizer',
version='1.0',
description='HTTP Proxy Request Randomizer',
package_dir={'project': 'project','http':'project/http',\
'requests':'project/http/requests','errors':'project/http/requests/errors',\
'parsers':'project/http/requests/parsers','proxy':'project/http/requests/proxy'},
packages=['project','http','requests','errors','parsers','proxy']
Here's the package structure:
pip3 freeze
gives me:
Complete output from command git config --get-regexp remote\..*\.url:
fatal: bad config file line 4 in /home/danny/.gitconfig
----------------------------------------
Error when trying to get requirement for VCS system Command "git config --get-regexp remote\..*\.url" failed with error code 128 in /home/danny/Documents/HTTP_Request_Randomizer, falling back to uneditable format
Could not determine repository location of /home/danny/Documents/HTTP_Request_Randomizer
Django==1.9.7
## !! Could not determine repository location
HTTP-Request-Randomizer==1.0
mysqlclient==1.3.7
So I want to have requestProxy.py install the other necessary packages and not fail at line 1. I'm sure this is a problem with my implementation and not the original author's coding. I was experimenting with this package a couple of weeks ago before I was aware of virtualenvs or pip install -e, and just copied it manually to site-packages. It worked then. Now I understand the concepts to do it more cleanly, but I can't get those to work.
It feels as though I have done something wrong with my git config or with my package_dir structure in setup.py, perhaps?
I've been pythoning for maybe a month and have a lot to learn. I normally find what I need on Stack Overflow without having to bother anyone, but after trying everything with this, I really need some help. Any advice much appreciated.
I figured it out. I was using Ninja IDE, and even though I entered the virtualenv for the project and restarted, it still wasn't recognizing it. I was able to run it from the terminal, and also in Pycharm and Liclipse.
I'm trying to install python to a 1and1.com shared linux hosting account.
There is a nice guide at this address:
http://www.jacksinner.com/wordpress/?p=3
However I get stuck at step 6 which is: "make install". The error I get is as follows:
(uiserver):u58399657:~/bin/python > make install
Creating directory /~/bin/python/bin
/usr/bin/install: cannot create directory `/~’: Permission denied
Creating directory /~/bin/python/lib
/usr/bin/install: cannot create directory `/~’: Permission denied
make: *** [altbininstall] Error 1
I look forward to some suggestions.
UPDATE:
Here is an alternative version of the configure step to fix the above error, however this time I'm getting a different error:
(uiserver):u58399657:~ > cd Python-2.6.3
(uiserver):u58399657:~/Python-2.6.3 > ./configure -prefix=~/bin/python
configure: error: expected an absolute directory name for --prefix: ~/bin/python
(uiserver):u58399657:~/Python-2.6.3 >
The short version is, it looks like you've set the prefix to /~/bin/python instead of simply ~/bin/python. This is typically done with a --prefix=path argument to configure or some other similar script. Try fixing this and it should then work. I'd suggest actual commands, but it's been a while (hence my request to see what you've been typing.)
Because of the above mistake, it is trying to install to a subdirectory called ~ of the root directory (/), instead of your home directory (~).
EDIT: Looking at the linked tutorial, this step is incorrect:
./configure --prefix=/~/bin/python
It should instead read:
./configure --prefix=~/bin/python
Note, this is addressed in the very first comment to that post.
EDIT 2: It seems that whatever shell you are using isn't expanding the path properly. Try this instead:
./configure --prefix=$HOME/bin/python
Failing even that, run echo $HOME and substitute that for $HOME above. It should look something like --prefix=/home/mscharley/bin/python
You really should consider using the AS binary package from Activestate for this kind of thing. Download the .tar.gz file, unpack it, change to the python directory and run the install shell script. This installs a completely standalone version of python without touching any of the system stuff. You don't need root permissions and you don't need to mess around with make.
Of course, maybe you are a C/C++ developer, make is a familiar tool and you are experienced at building packages from source. But if any of those is not true then it is worth your while to try out the Activestate AS binary package.
I was facing same issue with 1and1 shared hosting (Your provided linked tutorial is not available now). I followed Installing Python modules on Hostgator shared hosting using VirtualEnv tutorial with only one change for 1and1. That is:
Instead of:
> python virtualenv-1.11.6/virtualenv.py /home1/yourusername/public_html/yourdomain.com/env --no-site-package
I used:
> python virtualenv-1.11.6/virtualenv.py /kunden/homepages/29/yourusername/htdocs/env --no-site-package
Rest of the instructions worked and I successfully installed VirtualEnv.
Example: 1and1 does not provide Requests module and pip cannot be used in shared hosting. This screenshot demonstrates that after installing VirtualEnv, pip command can be used and at the end >>> import requests successfully worked.