Develop Reference

How to get SublimeText to load DLLs where they load fine using commandline

When using python through the commandline, I am able to import modules fine. However, when I build a python script in SublimeText3, some modules don't import. I generally receive the following error:
ImportError: DLL load failed: The specified module could not be found.
The problem looks to involve modules with dependencies on modules with a "_" prefix (_sqlite3, _ssl). For example:
File "C:\ProgramData\anaconda3\Lib\sqlite3\__init__.py", line 23, in <module>
from sqlite3.dbapi2 import *
File "C:\ProgramData\anaconda3\Lib\sqlite3\dbapi2.py", line 27, in <module>
from _sqlite3 import *
ImportError: DLL load failed: The specified module could not be found.
System:
Windows 10
SublimeText3 (freshly reinstalled during troubleshooting)
Python 3.7.3 [MSC v.1915 64 bit (AMD64)] :: Anaconda, Inc. on win32
(freshly reinstalled during troubleshooting)
Both commandline and ST3 or pointing to same instance of Python.
This is the only python install on the machine.
Have used default Python build in ST3 and created a new build, both have same issue.
Results when using the commandline:
Python 3.7.3 (default, Mar 27 2019, 17:13:21) [MSC v.1915 64 bit (AMD64)] :: Anaconda, Inc. on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import plotly
>>>
Results in ST3:
import plotly
Traceback (most recent call last):
File "C:\Users\usr\Desktop\scrap.py", line 1, in <module>
import plotly
File "C:\ProgramData\anaconda3\Lib\site-packages\plotly\__init__.py", line 32, in <module>
from plotly import (
File "C:\ProgramData\anaconda3\Lib\site-packages\plotly\graph_objs\__init__.py", line 3, in <module>
from plotly.basedatatypes import BaseLayoutType as _BaseLayoutType
File "C:\ProgramData\anaconda3\Lib\site-packages\plotly\basedatatypes.py", line 25, in <module>
from .callbacks import (Points, InputDeviceState)
File "C:\ProgramData\anaconda3\Lib\site-packages\plotly\callbacks.py", line 2, in <module>
from plotly.utils import _list_repr_elided
File "C:\ProgramData\anaconda3\Lib\site-packages\plotly\utils.py", line 262, in <module>
from chart_studio.utils import *
File "C:\ProgramData\anaconda3\Lib\site-packages\chart_studio\__init__.py", line 2, in <module>
from chart_studio import (plotly, dashboard_objs, grid_objs, session)
File "C:\ProgramData\anaconda3\Lib\site-packages\chart_studio\plotly\__init__.py", line 10, in <module>
from . plotly import (
File "C:\ProgramData\anaconda3\Lib\site-packages\chart_studio\plotly\plotly.py", line 38, in <module>
from chart_studio.plotly import chunked_requests
File "C:\ProgramData\anaconda3\Lib\site-packages\chart_studio\plotly\chunked_requests\__init__.py", line 1, in <module>
from . chunked_request import Stream
File "C:\ProgramData\anaconda3\Lib\site-packages\chart_studio\plotly\chunked_requests\chunked_request.py", line 4, in <module>
import ssl
File "C:\ProgramData\anaconda3\Lib\ssl.py", line 98, in <module>
import _ssl # if we can't import it, let the error propagate
ImportError: DLL load failed: The specified module could not be found.
[Finished in 2.9s]
Any help much appreciated, been stuck on this for days.

For those with a similar issue in the future, I've fixed this by uninstalling the Anaconda distribution of Python and replacing it with a base Python installation from Python.org, then installing packages using pip manually. While not the ideal solution, this has solved the issue so that when I build a Python script in ST3, all modules are imported fine.

ValueError with 'ciphers' when importing paramiko

I want to install paramiko on win 7 32bit ,the python is 3.3 .
I can compile it，but get follow errors:
Installed c:\python33\lib\site-packages\paramiko-1.8.0-py3.3.egg
Processing dependencies for paramiko==1.8.0
Searching for pycrypto==2.6
Best match: pycrypto 2.6
Adding pycrypto 2.6 to easy-install.pth file
Using c:\python33\lib\site-packages
Finished processing dependencies for paramiko==1.8.0
C:\Users\MC\Downloads\paramiko-paramiko-v1.8.0-9-g786920a>python
Python 3.3.0 (v3.3.0:bd8afb90ebf2, Sep 29 2012, 10:55:48) [MSC v.1600 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import paramiko
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File ".\paramiko\__init__.py", line 62, in <module>
from .transport import SecurityOptions, Transport
File ".\paramiko\transport.py", line 68, in <module>
class SecurityOptions (object):
ValueError: 'ciphers' in __slots__ conflicts with class variable
>>>

Paramiko does not run on Python 3. Yet. I'm working on a development branch (https://github.com/dorianpula/paramiko/tree/python3-support) to add support for Python 3, and I'm working on fixing this particular issue.

Python 2.6 complains about missing a math module - I cannot use it after some (other) software update. Any tips?

I am relatively new with Python. Here is my problem:
My environment was python2.6 with MacOs 10.6.8. I recently had to update my system with Python2.7 and some other stuff (Eclipse 3.6 and GoogleAppEngine). Python works fine within Eclipse, however, I want to keep the shell-mode in being able to quickly test small stuff on the commandline. I am getting this error message, and I need this to get rid of asap:
$ python
Python 2.7.3 (v2.7.3:70274d53c1dd, Apr 9 2012, 20:52:43)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import urllib
>>> import urllib2
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/urllib2.py",
line 92, in <module>
import httplib
File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/httplib.py",
line 77, in <module>
import mimetools
File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/mimetools.py",
line 6, in <module>
import tempfile
File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/tempfile.py",
line 34, in <module>
from random import Random as _Random
File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/random.py",
line 45, in <module>
from math import log as _log, exp as _exp, pi as _pi, e as _e, ceil as _ceil
ImportError: dlopen(/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
/lib-dynload/math.so, 2): Symbol not found: __PyLong_AsScaledDouble
Referenced from: /System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
/lib-dynload/math.so
Expected in: flat namespace
in /System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-dynload/math.so
Anyway, this was the python version that my macbook was shipped with at buying time. I don't think i want to waste time on removing, re-stalling etc. an apple-approved python version. Does anybody know how I can get my system back to run properly? And why does this error occur at all? Thanks for quick help!

Try to run your new python within a virtualenv, so that it is isolated from the system install.
http://pypi.python.org/pypi/virtualenv

using bbfreeze with a pyopengl application on linux

I have this pyopengl application and I'm trying to freeze it with bbfreeze. Unfortunately when I run the frozen app it errors with this:
Traceback (most recent call last):
File "<string>", line 6, in <module>
File "__main__.py", line 128, in <module>
File "__main__client__.py", line 11, in <module>
File "ui.py", line 15, in <module>
File "OpenGL/GLUT/__init__.py", line 2, in <module>
File "OpenGL/raw/GLUT/__init__.py", line 6, in <module>
File "OpenGL/raw/GLUT/constants.py", line 7, in <module>
File "OpenGL/platform/__init__.py", line 36, in <module>
File "OpenGL/platform/__init__.py", line 27, in _load
File "OpenGL/plugins.py", line 14, in load
File "OpenGL/plugins.py", line 28, in importByName
ImportError: No module named glx
Here's the requisite version information:
Python 2.6.6 (r266:84292, Sep 15 2010, 15:52:39)
[GCC 4.4.5] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import OpenGL
>>> OpenGL.__version__
'3.0.1b2'
>>> import bbfreeze
>>> bbfreeze.version
(0, 97, 3)
I'm trying to run it on the same machine I'm freezing it on, and the unfrozen app runs fine on that machine.
Has anyone managed to make this work? or perhaps provide some debugging guidance?

Try explicitly adding "OpenGL.platform.glx" to the list of included modules in the freeze. I think the bbfreeze option "includes" is what you want.
Update: take a look at the way PyInstaller does it: http://www.pyinstaller.org/browser/trunk/PyInstaller/hooks/hook-OpenGL.py
You will probably need to add all of these modules to your list of includes.

I am also facing the same challenge until I read the documention, which states that:
bbfreeze has been tested with python 2.4, 2.5 and 2.6. bbfreeze will not work with python versions prior to 2.3 as it uses the zipimport feature introduced with python 2.3.
So i think the best to do is to use the versions of python mentioned! Hope this helps!

"import numpy" results in error in one eclipse workspace, but not in another

Whenever I try importing numpy in my new installation of Eclipse and Pydev, I get the following error:
Traceback (most recent call last):
File "Q:\temp\test.py", line 1, in <module>
import numpy
File "C:\Python26\lib\site-packages\numpy\__init__.py", line 132, in <module>
import add_newdocs
File "C:\Python26\lib\site-packages\numpy\add_newdocs.py", line 9, in <module>
from lib import add_newdoc
File "C:\Python26\lib\site-packages\numpy\lib\__init__.py", line 4, in <module>
from type_check import *
File "C:\Python26\lib\site-packages\numpy\lib\type_check.py", line 8, in <module>
import numpy.core.numeric as _nx
File "C:\Python26\lib\site-packages\numpy\core\__init__.py", line 13, in <module>
import defchararray as char
File "C:\Python26\lib\site-packages\numpy\core\defchararray.py", line 23, in <module>
from numpy.core.multiarray import _vec_string
ImportError: cannot import name _vec_string
However, in a vanila python console and in IPython, import is successful
Python 2.6.5 (r265:79096, Mar 19 2010, 21:48:26) [MSC v.1500 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import numpy
>>>
Q:\Groups\Bioinformatics\HPLCautomatization\autohplc>ipython
Python 2.6.5 (r265:79096, Mar 19 2010, 21:48:26) [MSC v.1500 32 bit (Intel)]
Type "copyright", "credits" or "license" for more information.
IPython 0.10 -- An enhanced Interactive Python.
? -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help -> Python's own help system.
object? -> Details about 'object'. ?object also works, ?? prints more.
In [2]: import numpy
To make stuff even more complicated, in another Eclipse workspace, this import works fine. Restarting eclipse didn't help. I also tried to re-config the interpreter in Preferences->python->interpreter->python (as in this question), but the problem still exists
Two additional similar problems were described on SO (this and this), but both of them were observed with IronPython and I couldn't find anything I could use in the few answers that were provided.
EDIT As suggested by dutt, I checked Preferences->Pydev->Interpreter python->libraries in both the tested workspaces (the working one and the one that doesn't). The malfunctioning workspace contained the following library in system libs C:\Python26\lib\site-packages\numpy-1.5.0-py2.6-win32.egg . On the other hand, the working workspace doesn't list any numpy library in its system libraries list. I have removed the above library from the list in the not working workspace.

(Assuming you'r using PyDev) Look in Preferences->Pydev->Interpreter-Python->Libaries, you may have to add NumPy there. Should be located in your python/lib/site-packages folder.

check the version of your python release and numpy release. they should be the same.
It happened to me and I solved it re-installing my python and numpy for win32, although I have a 64-bit machine.