Does importing from a local script lib work in qpython3?
I have a script I created in the Qpython projects3 directory of qpython.
projects3/MPU6502/
I have my main code here in this directory.
main.py
I have a local subdirectory,
projects3/MPU6502/tiny6502lib/
In this sub directory I have the source code,
RAM_8bit_Memory.py
From my main.py source code I load the library,
#-*-coding:utf8;-*-
#qpy:3
#qpy:console
# import 6502 library module
from tiny6502lib.RAM_8bit_Memory import *
when I execute the library import I get the ERRORL:
"ImportError: No module named tiny6502lib.RAM_8bit_Memory"
Is importing local script libraries broken in qpython3?
org.qpython.py/projects/MPU6502/main.py
org.qpython.py/projects/MPU6502/tiny6502lib/RAM_8bit_Memory.py
This code works perfectly on all other flavors of python3 (windows) and pythonista on ipad.
How do I get this import to work? Or does it not work at all?
thank you,
Just try to insert the following code before importing tiny6502lib.RAM_8bit_Memory
import sys
sys.path.append("/sdcard/qpython/projects3/MPU6502")
?
Related
So I have trawled through other very similar issues and tried many variations but I cannot get this to work.
I have created code in a separate file under the following structure:
/somefolder/ #this is where my main code resides
/somefolder/src/ this is where my myfile.py resides that I want to import.
My main code starts as follows:
import os.path
import sys
sys.path.append(os.path.join(os.path.dirname(__file__), '../src'))
import myfile as mine
but then I get teh following error:
ModuleNotFoundError: No module named 'myfile'
Any assistance would be very welcome.
Assuming your current directory is PythonApplication1, you can follow these steps to access myfile module.
create __init__.py file in both PythonApplication1 and
PythonApplication1\src directories
Now import myfile as from src import myfile as mine
I am trying to execute the following import command:
from twisted.web.server import NOT_DONE_YET
I am able to do it just fine in the interpreter, but when I execute it in a .py script, I get the error message:
ImportError: No module named web.server
For some reason "web.server" is being interpreted as a module, as opposed to it being interpreted as the twisted/web/ directory > server.py file > NOT_DONE_YET variable.
The reason was because I had a filed named "twisted.pyc" in the same directory as my script, so it is looking in that file instead of the Twisted folder installed in the site-packages directory.
I am trying to built a web app on pythonanywhere.
I have a file abc.py and another file xyz.py . In the file xyz.py I want to use a function of abc.py so how do I import abc.py into xyz.py given that they are in the same directory. What will be the import statement? I was trying:
import "absolute/path/to/the/file.py" which didnt work.
Also did
from . import abc.py in xyz.py which also didnt work
PythonAnywhere dev here: if they're in the same directory, then you need to use
from abc import functionname
This part of the official Python tutorial explains how import works.
I am trying to import a module in my python script and I can't make it work.
So I have my python script: /home/user/pythonscript/oneDir/onescript.py
And I would like to use a script that is a directory higher in hierarchy:
/home/user/pythonscript/common.py
So I did the following at the top of my onescript.py:
import sys
sys.path.insert(1,'/home/user/pythonscript')
import common
In my common.py file, I have a function onecConnect, and when I try to run onescript.py, which uses onecConnect function, I get the following error: nameError: name 'onecConnect' is not defined
Anyone can see what I do wrong or forgot to do?
Thanks
Make sure there are __init__.py in all directories, go to /home/user/pythonscript and run Python code from there. So:
python oneDir/onescript.py
In onescript.py you can do:
from common import onecConnect
The rules are:
Always run a Python script from the highest possible directory (not the deepest into the project).
Always have full import lines, no relative imports.
This keeps the problems away.
Background
I have a Python project with this directory structure:
py/:
db/ __init__.py run.py
py/db:
handle.py __init__.py util.py
The files are simple enough that I'm not sure I need to post them; nevertheless:
py/run.py
from db.handle import Handle
py/db/handle.py:
import util
class Handle:
def __init__(self, x):
self.x = util.addtwo(x)
py/db/util.py:
def addtwo(x):
return x + 2
If I run handle.py from within the db subdirectory, it imports util without error. However, when I run run.py, handle.py fails with an import error. I can guess that handle.py is being run in the py directory (instead of py/db), and putting a call to os.getcwd() in handle.py confirms this. I can fix this problem using sys.path like so (in run.py):
import sys
sys.path.append("db")
from db.handle import Handle
Question
When importing, from a subdirectory, a module that contains imports to other local modules in that directory, why doesn't Python check the current directory of the module making the import statement? In my example, why doesn't Python check the db first when handle.py contains import statements? Is there a PEP that describes this or is it a behavior with an obvious rationale that I missed?
I thought it might be related to PEP 328:
all import statements be absolute by default (searching sys.path only) with special syntax (leading dots) for accessing package-relative imports.
but I'm not sure.
Your import is "absolute" and module names is looked for in the PYTHONPATH, and that typically includes the current directory.
If you want to import a module from the same folder that your module is in, you use a relative import:
from . import util
or
from .util import addtwo