Essentially, the main issue is that a package is not being seen for importing on Ubuntu where it is for Git Bash on Windows.
Here is the relevant directory structure with the library folder being the problematic package/module.
project-dir/
services/
task.py
library/
__init__.py
module.py
In the task.py file, I have imports that take the following syntax:
from library.module import function
In the project-dir folder, I run the following command: python services/task.py.
On Git Bash on Windows, this works perfectly. However, on Ubuntu, I get a ModuleNotFoundError thrown. Below is the abstracted aforementioned error:
Traceback (most recent call last):
File "services/task.py", line 3, in <module>
from library.module function
ModuleNotFoundError: No module named 'library'
Note: I saw this question, which looks very similar to my question, but adding things to PYTHONPATH did not fix things. Here is the output for PYTHONPATH for me:
/home/username/.local/lib/python3.6/site-packages:/usr/lib/python3.6:/usr/lib/python3.6/lib-dynload:/usr/local/lib/python3.6/dist-packages:/usr/lib/python3/dist-packages
Since no one posted an answer, and #forty_two happened to give me insight into what I need to do, I will explain my implementation of his suggestion.
I created a file called add_project_path.py in the services directory. The scripts contents is as follows:
import sys
import os
# Adds the project path
sys.path.append(os.path.dirname(os.path.dirname(os.path.realpath(__file__))))
This gets the add_project_path.py's path, gets the directory in which it resides, and gets that directory's parent directory, which is the project folder. Then, the project folder is added to the path, which solves the issue.
Edit:
Also, to explain further, I added import add_project_path at the top of my imports for task.py, which allowed the add_project_path module to import the project path before any of the other imports occur.
Related
Sorry if this a dumb question but i could not find similar question like this, Can someone help me understand the absolute import and how importing actually works in python, I watched a video where the instructor created two package one called package1 and package2, in the package2 this has a sub_package since am using python 3 i recreated the video topic and the above I placed an init file to some of the packages but not all because init is not really needed in the first place. I also have a root_file which is in the main directory of the overall project top level, this root_file module or script can access all the package, now when I import all the module via their package and sub-package into the root_file I have a function and name in the module to be printed out so when called from root_file.py I know who is who, this work fine, however, my issue is now when I try to absolute import from (package2 / module name = file2) into (package1 / module name = file1) I get a dirty big fat error
ModuleNotFoundError: No module named 'package2'
Traceback (most recent call last):
from package2 import file2
ModuleNotFoundError: No module named 'package2'
However, the import above worked for the instructor.
also, the same error occurs when I even attempt the basic to import from same package1 file1 into package1 file 2 I get
Traceback (most recent call last):
File "/Users/ganiyu/Desktop/Python_import/package1/file1.py", line 2, in <module>
from package1.file2 import pkg_1_file_2_func
ModuleNotFoundError: No module named 'package1'
Why does it only work when I import call from the packages and module into root_File.py or can some try recreating my issue or give me my answer also i am lost on why python keeps saying that 'package2 ' or the i try with package one or sub_packed it says the packages are modules.
EDITED
I found out that vscode is the issue it work on pycharm very all import combination can someone assist me how to get this working on vscode because am lost.
Make sure package2 is in the same directory as your file1.py.
From just looking at your directories, you can just move the package2 folder into your package1 folder.
package1
package2
package2 files
file1.py
When you run Python scripts, the current directory comes first for looking for modules, but the PYTHONPATH is also used.
It appears that your PYTHONPATH is not being set when you use VS Code, and VS Code is running the script from its own directory. PyCharm must be either setting it by default to the project root, or running the script from the project root. Please refer to How to use PYTHONPATH with VSCode Python Extension for Debugging?
Some authoritative names have commented and/or answered about the general problem of relative imports when trying to run a script within the module directory here: Relative imports in Python 3
My issue is that the Pycharm IDE is parsing the module and running it in this same directory. So I end up with import errors. Note that there is an __init__.py in the package. Looks fine to pycharm parser
from . logger import * # Logger is a module in same package
But ..
Traceback (most recent call last):
File "/git/bluej/fusion/python/pointr/bluej/util/DB.py", line 6, in <module>
from . logger import *
ImportError: attempted relative import with no known parent package
the Run Configuration was created by right-clicking in the module. The auto generated version is like this: having the working directory the same as the script dir. /git/bluej/fusion/python/pointr/bluej/util (note the package is pointr.blue.util):
I tried out putting the Working Directory at the base python directory level: /git/bluej/fusion/python/
However that did not have any effect.
Responding to a comment: logger is not the root package and so the following code does not work:
How can I develop, debug, and run modules with relative imports in Pycharm ?
Change script name to module name : see the first selection under Configuration
Change working directory to root of the hierarchy
hope for the best
My code executes correctly using python3, but using coverage3 returns an ImportError when importing a package I created.
My project looks as follows:
components/common/ConfigTest/ConfigTest.py -> file I want to execute - a test for the Config class declared in Config.py
components/common/Config.py -> file included in ConfigTest.py
The environment variable PYTHONPATH points to the location of the components directory so I can use it as base directory for my imports.
The ConfigTest.py file starts as follows:
import os
import unittest
from common.Config import Config
While located in the ConfigTest directory, running the following command produces the expected output:
python3 -m unittest ConfigTest.py
However, either running coverage3 run ConfigTest.py or coverage3 run -m unittest ConfigTest.py produce the following error:
Traceback (most recent call last):
File "ConfigTest.py", line 7, in <module>
from common.Config import Config
ImportError: No module named 'common.Config'
In the past I experienced similar problems when executing my code on different machines/different versions of Python, and these problems were caused due to the wrong setup of the PYTHONPATH environment var. In this case, I printed print(os.environ['PYTHONPATH']) before doing the problematic import, and it prints the correct value of such var when using python3 and coverage3.
Any clue on what the problem could be?
Thanks.
I solved it by adding a __init__.py in both the source and tests directories. It seems that python3 is able to find the sources by using PYTHONPATH even if the directory has no __init__.py file, but coverage3 requires the directories to be set as modules.
This works in my current configuration, but I am not sure if it is the general Python and coverage behavior.
I am getting this error
Traceback (most recent call last):
File "Exporter.py", line 3, in <module>
import sys,getopt,got,datetime,codecs
File "C:\Users\Rohil\Desktop\GetOldTweets-python-master\got\__init__.py", line 1, in <module>
import models
ModuleNotFoundError: No module named 'models'
my directory tree is:
C:\Users\Rohil\Desktop\GetOldTweets-python-master\got
this contains 2 folders: manager and models and 1 __init__.py file with the code :
import models
import manager
i am executing a file with the path: C:\Users\Rohil\Desktop\GetOldTweets-python-master\Exporter.py
I can't figure out what the issue is. can anyone assist me?
Set the environment variable PYTHONPATH=C:\Users\Rohil\Desktop\GetOldTweets-python-master\got (how exactly, depends on your operating system)
If you have created a directory and sub-directory then follow the below steps and please keep in mind that a directory must have an __init__.py file for python to recognize it as a package.
First run this to see all paths being searched by python:
import sys
sys.path
You must be able to see your current working directory in that list.
Now import the sub-directory and the respective module that you want to use via the import command: import subdir.subdir.modulename as abc You should now be able to use the methods in that module.
As you can see in this screenshot above I have one parent directory and two sub-directories. Under the second sub-directory I have a module named CommonFunction. On the console to the right you can see my working directory after execution of sys.path.
Does the models folder has an __init__.py file inside it ? Only then, it will be recognized as a module by python and import models would make sense.
So,
Create an empty __init__.py file in the models subfolder and then the code should work without any issues.
You should also look at this answer.
if create d or using or custom python package
check our dir. correct.
** For python 3.7 user **
from. import module_name
If you are using python3 but are installing the API through 'pip install 'such and such'. It's not gonna work on python3 console. Therefore, you'd better use 'sudo python3 -m pip install 'such and such''. Then it's gonna work!
(at least for ubuntu stuff)
:)
I have a module I have installed called lts_fits, and this is its path:
~/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/lts_fits
So it is clearly in the site packages folder. Within this folder, there is a python script:
lts_linefit.py
Yet when I have this line of code in my script:
from lts_fits import lts_linefit
I get this error:
ImportError: No module named lts_fits
How? It's clearly in there, and I have tried this same syntax with other random scripts and they import just fine. For instance, a file abc.py located in the folder ~/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/sympy imports just fine when I have the line from sympy import abc. What could be going wrong?
You need an __init__.py file in that directory (you do not have to put anything into the file, all you need to do is create it).
The easiest way to create said file is by using:
touch __init__.py
from within your lts_fits directory in your command line/terminal/console.
See this SO article: What is __init__.py for?
And the Python Documentation for packages.