#python-import

How to: python ImportError No module named #computers #development #fix

python ImportError No module named

I am very new at python and I am getting this error:

Traceback (most recent call last): File "mountain.py", line 28, in ? from toolkit.interface import interface ImportError: No module named toolkit.interface

Python is installed in a local directory:

My directory tree is like this:

(local directory)/site-packages/toolkit/interface.py

My code is in here

(local…

How to: Attempted relative import in non-package even with __init__.py #it #computers #development

Attempted relative import in non-package even with __init__.py

I’m trying to follow PEP 328, with the following directory structure:

pkg/ __init__.py components/ core.py __init__.py tests/ core_test.py __init__.py

In core_test.py I have the following import statement

from ..components.core import GameLoopEvents

However, when I run, I get the following error:

tests$ python core_test.py…

Resolved: Dynamic module import in Python #computers #it #development

Dynamic module import in Python

I’m writing a Python application that takes as a command as an argument, for example:

$ python myapp.py command1

I want the application to be extensible, that is, to be able to add new modules that implement new commands without having to change the main application source. The tree looks something like:

myapp/ __init__.py commands/ __init__.py command1.py…

How to: Python: import a file from a subdirectory

Python: import a file from a subdirectory

I have a file called tester.py, located on /project.

/project has a subdirectory called lib, with a file called BoxTime.py:

/project/tester.py /project/lib/BoxTime.py

I want to import BoxTime from tester. I have tried this:

import lib.BoxTime

Which resulted:

Traceback (most recent call last): File "./tester.py", line 3, in import lib.BoxTime…

Fixed How do I unload (reload) a Python module? #dev #it #asnwer

How do I unload (reload) a Python module?

I have a long-running Python server and would like to be able to upgrade a service without restarting the server. What’s the best way do do this?

if foo.py has changed: unimport foo < How do I do this? import foo myfoo = foo.Foo()

Answer: How do I unload (reload) a Python module?

The following code allows you Python 2/3 compatibility:

try: reload…

Fixed How to import a module given the full path? #dev #it #asnwer

How to import a module given the full path?

How can I load a Python module given its full path? Note that the file can be anywhere in the filesystem, as it is a configuration option.

Answer: How to import a module given the full path?

In Linux, adding a symbolic link in the directory your python script is located works.

ie:

ln -s /absolute/path/to/module/module.py…

Fixed Import a module from a relative path #dev #it #asnwer

Import a module from a relative path

How do I import a python module given its relative path?

For example, if dirFoo contains Foo.py and dirBar, and dirBar contains Bar.py, how do I import Bar.py into Foo.py?

Here’s a visual representation:

dirFoo\ Foo.py dirBar\ Bar.py

Foo wishes to include Bar, but restructuring the folder heirarchy is not an option.

Answer: Import a module from a relative path

How to: python ImportError No module named

python ImportError No module named

I am very new at python and I am getting this error:

Traceback (most recent call last): File "mountain.py", line 28, in ? from toolkit.interface import interface ImportError: No module named toolkit.interface

Python is installed in a local directory:

My directory tree is like this:

(local directory)/site-packages/toolkit/interface.py

My code is in here

(local…