Develop Reference

Cannot install custom python module

I am having trouble installing a custom python module I have written.
Here are my steps so far:
Navigate to the module directory C:\Users\myname\repos\mymodulename where the setup.py file is in the anaconda prompt. Type: python setup.py install
The command prompt returns (plus some other things)
Extracting mymodulename-0.1-py3.7.egg to c:\users\myname\appdata\local\continuum\anaconda3\lib\site-packages
mymodulename 0.1 is already the active version in easy-install.pth
Installing myclass-script.py script to C:\Users\myname\AppData\Local\Continuum\anaconda3\Scripts
Installing myclass.exe script to C:\Users\myname\AppData\Local\Continuum\anaconda3\Scripts
Installed c:\users\myname\appdata\local\continuum\anaconda3\lib\site-packages\mymodulename-0.1-py3.7.egg
Processing dependencies for mymodulename==0.1
...
Using c:\users\myname\appdata\local\continuum\anaconda3\lib\site-packages
Finished processing dependencies for mymodulename==0.1
To me that looks like it has installed. Opening up the console and trying to import:
>>> import mymodulename.myclassas ce
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'mymodulename'
>>>
It appears in hasn't. Checking the list of modules in anaconda with help('modules') confirms that it has not been imported.
I thought that perhaps i had installed it to the wrong environment:
(base) C:\Users\myname>conda env list
# conda environments:
#
base * C:\Users\myname\AppData\Local\Continuum\anaconda3
py2 C:\Users\myname\AppData\Local\Continuum\anaconda3\envs\py2
Only a python 2 environment which mymodule wouldn't be compatible with.
Does anyone have any suggestions about what I can try to resolve this? Happy to elaborate on any of the points
Thanks in advance.
EDIT: Some more information that may be relevant.
This package was initially installed in site-packages. I have reinstalled there and the package works. The reason I moved the package is because I am aware it is bad practice to store custom packages there.

How to alter setup.py for CyIPOPT

I want to install the python package CyIpopt (https://github.com/matthias-k/cyipopt) on windows 10 and python version 3.5.2. For the binary I am using http://www.coin-or.org/Binaries/Ipopt/Ipopt-3.10.1-Win32-Win64-dll.7z (which I unpacked). The github page gives install instructions. At one point it says:
Download the source files of cyipopt and update setup.py to point to the header files and binaries of the Ipopt package, if LD_LIBRARY_PATH and pkg_config are not setup to find ipopt on their own.
I downloaded the source files from github and edited the setup.py file by altering lines 33-36 to :
IPOPT_ICLUDE_DIRS=['D:\...\Ipopt-3.10.1-Win32-Win64-dll\include\coin', np.get_include()]
IPOPT_LIBS=['IpOptFSS','IpOpt-vc10','IpOpt-vc8']
IPOPT_LIB_DIRS=['D:\...\Ipopt-3.10.1-Win32-Win64-dll\lib\\x64\Release MKL']
IPOPT_DLL=['IpOptFSS.dll','IpOpt-vc10.dll','IpOpt-vc8.dll']
The dots represent the path to these folders on my computer. Now when I run python setup.py install, it run succesfuly. However when I then run python and import ipopt I get the following error:
Traceback (most recent call last):
File "", line 1, in
File "C:\Users\Linthorst\Miniconda3\lib\site-packages\ipopt-0.1.6-py3.5-win-amd64.egg\ipopt__init__.py", line 40, in
from cyipopt import *
ImportError: No module named 'cyipopt'
I suspect I altered the setup.py file incorrectly (since I made an educated guess). I am confused that it installed but doesn't work. Can anybody help me solve this error? Many thanks in advance

Installing PyGMO on Mac OS X Yosemite - missing boost-python3?

I've been trying to install PyGMO on my Mac OS X 10.10. I'm using Anaconda Python 2.3, so it comes with python 3.4.
I followed the instructions on http://esa.github.io/pygmo/install.html and did try to build boost manually but didn't have much luck with building boost-python... The instructions I could find on the official website was very limited...
While using ccmake to run the build file in pagmo/build directory, it complained that it did not find boost-python3...
So I reverted to using brew to install boost. Thanks to the info I found on this page: http://ryanclouser.com/2015/07/16/Mac-OSX-Build-Boost-Python-with-Python3-Support/
Now I have both boost and boost-python installed, but still the ccmake process for PyGMO complains about not being able to find boost-python3.
Are there any environment variables I need to set? In the ccmake config screen do I need to set Boost_PYTHON3_LIBRARY_RELEASE or Boost_PYTHON3_LIBRARY_DEBUG?
LATEST EDIT: This SHA256 below mis-match is resolved. Turned out it was caused by source forge site being down when I ran the commands... Some better error messages would have helped.
However, when I tried to get boost and boost-python with brew, I got the following SHA256 hash code mismatch error.
Anyone has any idea how to fix this?
>$ sudo brew install boost-python --with-python3
==> Installing boost-python dependency: boost
==> Downloading https://homebrew.bintray.com/b...
####################################################################### 100.0%
==> Pouring boost-1.58.0.yosemite.bottle.tar.gz
🍺 /usr/local/Cellar/boost/1.58.0: 10718 files, 486M
==> Installing boost-python
==> Downloading https://downloads.sourceforge....
==> Downloading from http://downloads.sourceforge.n...
####################################################################### 100.0%
Error: SHA256 mismatch
Expected: fdfc204fc33ec79c99b9a74944c3e54bd78be4f7f15e260c0e2700a36dc7d3e5
Actual: 818a4b8bbcb50878a8b1b9f71b4274d242ab46bf860c74676e98dec1d0248821
Archive: /Library/Caches/Homebrew/boost-python-1.58.0.tar.bz2
To retry an incomplete download, remove the file above.
Tried to delete the cached boost package files as suggested a few times but it didn't work either.
Thanks guys.

Ok problem resolved. Here's the best practice to get boost on Mac OS X.
Use Homebrew! but the key is to use the --with-python3 switch! Credits to this page: http://ryanclouser.com/2015/07/16/Mac-OSX-Build-Boost-Python-with-Python3-Support/
>$ brew install boost-python --with-python3
Assuming you have CMake already, just follow the instructions on PyGMO's website.
pagmo/build>$ ccmake ../
This will then bring up the config screen, everything should look fine. If not, do rm -rf * in pagmo/build folder to clear everything and start again (this resolved the issue with boost-python3 for me mentioned above.
Then run make and sudo make install as mentioned on the website.
PyGMO should be ready for use in python after that!
I had the following error message. However, if I start python in the ~/anaconda/lib folder where I have my anaconda installed, import PyGMO worked, so it's probably some library path thing that needs to be fixed.
>>> import PyGMO as gmo
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Users/xxx/anaconda/lib/python3.4/site-packages/PyGMO/__init__.py", line 57, in <module>
from PyGMO import core, algorithm, migration, problem, topology, test, util
File "/Users/xxx/anaconda/lib/python3.4/site-packages/PyGMO/core/__init__.py", line 2, in <module>
from PyGMO.core._core import *
ImportError: dlopen(/Users/xxx/anaconda/lib/python3.4/site-packages/PyGMO/core/_core.so, 2):
Library not loaded: libpython3.4m.dylib
Referenced from: /Users/xxx/anaconda/lib/python3.4/site-packages/PyGMO/core/_core.so
Reason: image not found
**Latested EDIT: ** Did some searching around, a partial solution to the import error above, is to set DYLD_LIBRARY_PATH=~/anaconda/lib. With this, imports will work when you launch python in a console. However, IPython-notebook would not start for me... Also have seen that Max OS doesn't really have a dynamic search also...

Unable to import git in python

I am facing these issues. Can you help me with the same ?
Why am I seeing this error ? Do I have to add anything in the requirements.txt file ?
>>> import git
Traceback (most recent call last):
File "<pyshell#7>", line 1, in <module>
import git
File "git\__init__.py", line 29, in <module>
_init_externals()
File "git\__init__.py", line 23, in _init_externals
raise ImportError("'gitdb' could not be found in your PYTHONPATH")
ImportError: 'gitdb' could not be found in your PYTHONPATH
>>> from git import Repo
Traceback (most recent call last):
File "<pyshell#8>", line 1, in <module>
from git import Repo
File "git\__init__.py", line 29, in <module>
_init_externals()
File "git\__init__.py", line 23, in _init_externals
raise ImportError("'gitdb' could not be found in your PYTHONPATH")
ImportError: 'gitdb' could not be found in your PYTHONPATH

I already had gitdb and smmap installed so I had to reinstall them.
You can reinstall them by running the following command in your terminal:
pip3 install --upgrade --force-reinstall gitdb; pip3 install --upgrade --force-reinstall smmap

I also got the message ImportError: 'gitdb' could not be found in your PYTHONPATH (when trying to use GitPython).BUT I had gitdb already installed!
Thanks to this hint I figured out that gitdb silently failed because it was missing smmap.
So I installed this and it worked.

You need to install gitdb package.
$ sudo easy_install gitdb

I had the same problem. However, gitdb and smmap were already installed by pip. As I used brew to install python and its dependencies on my mac, when I checked brew doctor command, it said that my /usr/local/sbin directory is not in my PATH. So I added it to my PATH (though it didn't have anything to do with the python) and everything worked out eventually.

MS Windows Versions of this problem can occur because of the order of Python versions in your system PATH, as it did for me. I did not realize that when I installed another program, it installed a newer version of Python for its own usage, and it appended my system PATH with the address to the newer version. I noticed it when I looked at the PATH variable and found two versions of Python being called. Windows uses the first it finds, and if the first doesn't match what your program expects, it gets confused and can't find the right path to the module. This is what I did to resolve it:
To check: an easy way to test if this is your problem is to see if the paths separated by semicolons are in the right order. That can be seen in the System Variables of Windows or by printing your PATH variable in your CMD shell like in this example:
C:> path
PATH=C:\Program Files (x86)\Python37-32\Scripts;C:\Program Files (x86)\Python37-32;C:\Program Files\Python38\Scripts;C:\WINDOWS
Temporary solution:
To see if it is going to fix your computer, change it in your CMD window. Your variable change will be discarded when the window is closed. One way to do this test is to copy the paths, move the Python references to the order they are needed, and write it back:
C:> set path = C:\WINDOWS;C:\Program Files (x86)\Python37-32;C:\Program Files\Python38\Scripts;C:\Program Files (x86)\Python37-32\Scripts\
Then run the Python program to see if this was your problem. Note that this is only an example; do not copy & paste it. Your path is customized for the programs on your computer.
Permanent solution: If the above test resolves your problem, you must change your System Variables to make the change permanent. For me that usually requires a reboot afterwards in order to make the variables appear in all new windows.

Error Installing imgseek on Mac Os

I am trying to install imgseek- the server version (http://www.imgseek.net/) to do image analysis.I am able to install all the dependencies successfully using:
sudo port install swig
sudo port install swig-python
sudo easy_install twisted
sudo port install imagemagick
sudo easy_install epydoc
Then I download isk-daemon from the downloads(isk-daemon-0.9.3.tar.gz) and build and install it. Everything runs succesfully.
But when I run iskdaemon.py from the command prompt, i get the following error:
sk-daemon : WARNING | no config file (isk-daemon.conf) found. Looked at local dir, home user dir and /etc/iskdaemon. Using defaults for everything.
root : ERROR Unable to load the C++ extension "_imgdb.so(pyd)" module.
root : ERROR See http://www.imgseek.net/isk-daemon/documents-1/compiling
Traceback (most recent call last):
File "/Users/gghanakota/anaconda/lib/python2.7/site-packages/isk_daemon-0.9.3-py2.7-macosx-10.5-x86_64.egg/imgSeekLib/ImageDB.py", line 35, in
import imgdb
File "/Users/gghanakota/anaconda/lib/python2.7/site-packages/isk_daemon-0.9.3-py2.7-macosx-10.5-x86_64.egg/imgSeekLib/imgdb.py", line 28, in
_imgdb = swig_import_helper()
File "/Users/gghanakota/anaconda/lib/python2.7/site-packages/isk_daemon-0.9.3-py2.7-macosx-10.5-x86_64.egg/imgSeekLib/imgdb.py", line 20, in swig_import_helper
import _imgdb
ImportError: dlopen(/Users/gghanakota/anaconda/lib/python2.7/site-packages/isk_daemon-0.9.3-py2.7-macosx-10.5-x86_64.egg/_imgdb.so, 2): Symbol not found: __ZNSs4_Rep20_S_empty_rep_storageE
Referenced from: /Users/gghanakota/anaconda/lib/python2.7/site-packages/isk_daemon-0.9.3-py2.7-macosx-10.5-x86_64.egg/_imgdb.so
Expected in: dynamic lookup
Please help!

I had the same problem when I was trying to install iskdaemon on my Mac (osx yosemite).
The problem in my case was that when I was building it, the c++ compiler threw two errors on using min function in imgdb.cpp
The error was because the types of the variables in the min function were not the same. Consequently the build failed and the imgdb module wasn't produced.
I fixed it by adding a simple typecast to the variables passed to the min function:
I changed: min(sz, numres) to min(sz, (long int)numres) on line 1003,
and min((V.size()/2), numres) to min((int)(V.size()/2), numres) on line 1327
I built again and it is working now.
Check if you get any errors when you build, maybe you are facing the same issue.