I'm beginning to learn python,
but when I try to import modules from an ather file I get this error:
Traceback (most recent call last):
File "./test", line 4, in <module>
from multip import table
ImportError: No module named multip
The both files are in the same directory
when I import modules like 'math' or 'os' it's work, the probleme is between files
OS:ubuntu 12.04
python version:python 3.2.3
You can import only files that have a .py extension. (or directories having a __init__.py file in them).
EDIT : I was not aware that modifying the PYTHONPATH environnement was considered as a bad practice. The reason given by #wRAR is that it has a permanent effect that can have uncontrolled side effects. You had better trying the first proposition (sys.path.append) to see if it can solve your problem. More about the sys.path.append vs PYTHONPATH can be found in this topic : PYTHONPATH vs. sys.path
Isn't it related to your PYTHONPATH environnement variable ? If you add '.' or the directory were you are working, I guess it should be ok
in your shell :
export PYTHONPATH=.:$PYTHONPATH
python test.py
or (for test purpose, not to be used systematically) in your python file :
import sys
sys.path.append(".")
Related
This code worked on Friday without problems and still running on a colleagues laptop, but I cannot run it anymore.
As you can see in the screenshot, my editor doesnt find some moduls anymore and the pylint Error "E0401: Unable to import" occurs.
The missing file exists in the folder Settings, as you can see in the Explorer on the left side.
Today I deactivated/activated pylint, reinstalled vs code and python, added the init.py to Settings folder, tried the same code in eclipse, modified the Path enviroment variable and created the PYTHONPATH enviroment variable. All this with no success:/
I am greatful for each hint, which provide me to solve this problem.
The error output as text:
Windows PowerShell
Copyright (C) Microsoft Corporation. Alle Rechte vorbehalten.
PS C:\Users\Evgenij\Desktop\Desktop\Eth_Test_Dev> & C:/Python27/python.exe c:\Users\Evgenij\Desktop\Desktop\Eth_Test_Dev\Code\__TC__Template.py
Traceback (most recent call last):
File "c:\Users\Evgenij\Desktop\Desktop\Eth_Test_Dev\Code\__TC__Template.py", line 36, in <module>
from Lib.IHR_EthApi import EthApi as ETH
File "c:\Users\Evgenij\Desktop\Desktop\Eth_Test_Dev\Code\Lib\IHR_EthApi.py", line 6, in <module>
from IHR_GeneralApi import GeneralApi as SYS
File "c:\Users\Evgenij\Desktop\Desktop\Eth_Test_Dev\Code\Lib\IHR_GeneralApi.py", line 4, in <module>
import IHR_TestSuiteConfig.py
ImportError: No module named IHR_TestSuiteConfig.py
PS C:\Users\Evgenij\Desktop\Desktop\Eth_Test_Dev>
In your code you have the line:
import IHR_TestSuiteConfig.py
That won't work because you don't specify modules to import by file name but by module name, e.g.:
import IHR_TestSuiteConfig
But looking at your screenshot you have a bigger issue of the code being kept in a Settings directory at the same level as your Lib directory containing the code you are importing into.
You need to either anchor all of your code up a level so you can do:
from ..Settings import IHR_TestSuiteConfig
Or you need to manipulate your PYTHONPATH environment variable to put Settings directly on to sys.path (in VS Code you can create a .env file to do this, but it won't' affect running Python from the terminal, only when VS Code runs e.g. Pylint).
I would like to have an interface between Python and sqlite. Both are installed on the machine. I had an old version of Python (2.4.3). So, pysqlite was not included by default. First, I tried to solve this problem by installing pysqlite but I did not succeed in this direction. My second attempt to solve the problem was to install a new version of Python. I do not have the root permissions on the machine. So, I installed it locally. The new version of Python is (2.6.2). As far as I know this version should contain pysqlite by default (and now it is called "sqlite3", not "pysqlite2", as before).
However, if I type:
from sqlite3 import *
I get:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/verrtex/opt/lib/python2.6/sqlite3/__init__.py", line 24, in <module>
from dbapi2 import *
File "/home/verrtex/opt/lib/python2.6/sqlite3/dbapi2.py", line 27, in <module>
from _sqlite3 import *
ImportError: No module named _sqlite3
It has to be noted, that the above error message is different from those which I get if I type "from blablabla import *":
Traceback (most recent call last):
File "", line 1, in
ImportError: No module named blablabla
So, python see something related with pysqlite but still has some problems. Can anybody help me, pleas, with that issue?
P.S.
I use CentOS release 5.3 (Final).
On Windows, _sqlite3.pyd resides in C:\Python26\DLLs. On *nix, it should be under a path similar to /usr/lib/python2.6/lib-dynload/_sqlite3.so. Chances are that either you are missing that shared library or your PYTHONPATH is set up incorrectly.
Since you said you did not install as a superuser, it's probably a malformed path; you can manually have Python search a path for _sqlite3.so by doing
import sys
sys.path.append("/path/to/my/libs")
but the preferred approach would probably be to change PYTHONPATH in your .bashrc or other login file.
You have a "slite3.py" (actually its equivalent for a package, sqlite3/__init__.py, so import sqlite3 per se is fine, BUT that module in turns tries to import _sqlite3 and fails, so it's not finding _sqlite3.so. It should be in python2.6/lib-dynload under your local Python root, AND ld should be instructed that it has permission to load dynamic libraries from that directory as well (typically by setting appropriate environment variables e.g. in your .bashrc). Do you have that lib-dynload directory? What's in it? What environment variables do you have which contain the string LD (uppercase), i.e. env|grep LD at your shell prompt?
I looked through the other posts and bug reports and couldn't figure out what's causing this. I'm using Jython 2.5.1, in a Java project in Eclipse (Ubuntu 8.10). It has been added to the project as a standalone .jar file (I just replaced the old Jython 2.1 jar with this one).
I'm running a script that uses the threading.py class. At some point the statement "import os" is evaluated from linecache.py and I get this error, which I can't seem to figure out how to fix:
'Execution failed. Traceback (most recent call last):
File "<string>", line 1, in <module>
File "../lib/python/threading.py", line 6, in <module>
import traceback
File "../lib/python/traceback.py", line 3, in <module>
import linecache
File "../lib/python/linecache.py", line 9, in <module>
import os
ImportError: No module named os'
What do you mean with "the jar that comes with the 2.5 download"? Did you extract the contents and use jython.jar or did you run the installer? If you just extracted and didn't run the installer your jython.jar will miss the whole LIB folder.
Can you check if jython.jar contains a LIB folder? (e.g. open jython.jar with 7z or WinZip).
Or try copying the LIB folder in the same folder where jython.jar resides.
Did you try setting these properties. Jython Registry. e.g. via -Dpython.home in the eclipse run configuration.
python.cachedir
python.path
python.home
How is the jar named? If similar to jython-complete.jar try renaming it to jython.jar
Something is wrong at a very deep level, but it's probably easy to fix. You are seeing an error that happens while trying to report some other error.
Probably you have your PYTHONPATH misconfigured. I don't know the details of Jython or Eclipse running Jython, but it looks like you have no standard library available to you.
If you are getting maven, using the dependency jython-standalone instead of jython may help (at least it did for me in a maven project with jython-standalone-2.5.3)
I would like to have an interface between Python and sqlite. Both are installed on the machine. I had an old version of Python (2.4.3). So, pysqlite was not included by default. First, I tried to solve this problem by installing pysqlite but I did not succeed in this direction. My second attempt to solve the problem was to install a new version of Python. I do not have the root permissions on the machine. So, I installed it locally. The new version of Python is (2.6.2). As far as I know this version should contain pysqlite by default (and now it is called "sqlite3", not "pysqlite2", as before).
However, if I type:
from sqlite3 import *
I get:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/verrtex/opt/lib/python2.6/sqlite3/__init__.py", line 24, in <module>
from dbapi2 import *
File "/home/verrtex/opt/lib/python2.6/sqlite3/dbapi2.py", line 27, in <module>
from _sqlite3 import *
ImportError: No module named _sqlite3
It has to be noted, that the above error message is different from those which I get if I type "from blablabla import *":
Traceback (most recent call last):
File "", line 1, in
ImportError: No module named blablabla
So, python see something related with pysqlite but still has some problems. Can anybody help me, pleas, with that issue?
P.S.
I use CentOS release 5.3 (Final).
On Windows, _sqlite3.pyd resides in C:\Python26\DLLs. On *nix, it should be under a path similar to /usr/lib/python2.6/lib-dynload/_sqlite3.so. Chances are that either you are missing that shared library or your PYTHONPATH is set up incorrectly.
Since you said you did not install as a superuser, it's probably a malformed path; you can manually have Python search a path for _sqlite3.so by doing
import sys
sys.path.append("/path/to/my/libs")
but the preferred approach would probably be to change PYTHONPATH in your .bashrc or other login file.
You have a "slite3.py" (actually its equivalent for a package, sqlite3/__init__.py, so import sqlite3 per se is fine, BUT that module in turns tries to import _sqlite3 and fails, so it's not finding _sqlite3.so. It should be in python2.6/lib-dynload under your local Python root, AND ld should be instructed that it has permission to load dynamic libraries from that directory as well (typically by setting appropriate environment variables e.g. in your .bashrc). Do you have that lib-dynload directory? What's in it? What environment variables do you have which contain the string LD (uppercase), i.e. env|grep LD at your shell prompt?
I'm trying to install Plone 3.3rc4 with plone.app.blob and repoze but nothing I've tried has worked so far. For one attempt I've pip-installed repoze.zope2, Plone, and plone.app.blob into a virtualenv. I have this version of DocumentTemplate in the virtualenv's site-packages directory and I'm trying to get it running in RHEL5.
For some reason when I try to run paster serve etc/zope2.ini in this environment way Python gives the message ImportError: No module named DT_Util? DT_Util.py exists in the directory, __init__.py is there too, and the C module it depends on is there. I suspect there's some circular dependency or failure when importing the C extension. Of course this module would work in a normal Zope install...
>>> import DocumentTemplate
Traceback (most recent call last):
File "<stdin>", line 1, in ?
File "DocumentTemplate/__init__.py", line 21, in ?
File ".../lib/python2.4/site-packages/DocumentTemplate/DocumentTemplate.py", line 112, in ?
from DT_String import String, File
File ".../lib/python2.4/site-packages/DocumentTemplate/DT_String.py", line 19, in ?
from DocumentTemplate.DT_Util import ParseError, InstanceDict
ImportError: No module named DT_Util
I must say I doubt DocumentTemplate from Zope will work standalone. You are welcome to try though. :-)
Note that DT_Util imports C extensions:
from DocumentTemplate.cDocumentTemplate import InstanceDict, TemplateDict
from DocumentTemplate.cDocumentTemplate import render_blocks, safe_callable
from DocumentTemplate.cDocumentTemplate import join_unicode
You'll need to make sure those are compiled. My guess is that importing the cDocumentTemplate module fails and thus the import of DT_Util fails.