PyScripter won't update my imports - python

I am using portable python 1.1 with python 2.6.2. The PyScriptor is 1.9.9.6. I open all the files I am working on with PyScriptor. So, I run my main file and an error shows up with code in one of my imported files. I fix it and run the main file again, but the same error shows up. It is as if the imported file is still the old one but PyScriptor is correctly saving the files I edit. Restarting PyScriptor fixes it, but is a pain to do that for every bug. I tested this happens bu adding a print statement that showed up after restarting, and then removing it and still see the print statement.

You can use reload(imported_module_name) in the interactive shell to reload the module before re-running your script. PyScripter does everything in a single Python instance, which makes debugging easier, but also, as you discovered, makes fixing imported files a bit trickier.
You can also completely reinitialize the Remote Engine from the Run menu to get a fresh interpreter.

Related

VScode - code changes not reflected in performance, despite saving

Hey everyone!
Just moved over to VScode and dealing with some initial transition problems.
I'm using VScode for Python and have been using the interactive window and debugger. For my python interpreter, I've been selecting Python 3.9.7, which is a part of my Anaconda installation.
I've noticed that when I've been changing and saving my functions in one py file, and then calling the function from another file, that the changes I've made in my code aren't reflected in the code output.
It's worth noting that when the changes are made and saved in a file, and the same file is run, the changes WILL be reflected, so it's purely an issue between files. I reload the functions from the file after I make the changes and save them, so it's not an issue of reloading the function.
To provide some context in the photo, I have different functions in the file "Metric_Functions.py". I'm testing the code using different tests in the file "UnitTestCode.py". However, as I'm running the tests (reloading the functions and running the cell with the specific test), I noticed that when I made updated in the file "Metric_Functions", those changes were not being reflected in the unit test results.
Any help/experience with this kind of issue/suggestions of where to start to look would be really appreciated! Really inexperienced with VScode, so any help would be awesome.
Thanks!
In iPython and Jupyter imported modules persist throughout the session. If a module has already been imported then running the import statement again doesn't do anything at all since the interpreter can see that this module already exists in the namespace.
In order for the changes to external module to be seen in iPython/Jupyter you need to kill/restart the current instance and then run the import again.

Asking for overwrite while trying to run script in ipython

I am fairly new to programming in python. I installed anaconda and am running iPython (the Jupyter qtconsole) v.4.3.0 and python v.3.6 on a Mac. Currently, I am trying to import a module with functions located in my home directory.
I have looked at stackoverflow and python documentation and found that it could be done with:
%run "Users/myUser/python_functions.py"
or
import python_functions
However, when I try both of these approaches, I get prompted to overwrite the file that I am running or importing:
File `python_functions.py` exists. Overwrite (y/[N])?
This is changing the previous file and not getting the functions I want to be imported.
What may explain this, and what can I do to import my module?
this is wrong but leaving it up for shame
import on ubuntu (and I'm guessing many other unix-like OSs including Mac) is a utility that saves any visible window on an X server and outputs it as an image file. You can capture a single window, the entire screen, or any rectangular portion of the screen.
My guess if you are running the import command in your console, and it's about to take a screenshot and save it over an existing file - python_functions
Before you the use the python import command, start a python interpreter:
$ python
>>>import yourfile
edit: on re-reading your question, I'm not so sure about my guess anymore, but leaving it up until you tell me I'm wrong :)
Running Jupyter qtconsole as an interpreter is likely causing the problem in this scenario. Instead using a IDE or command line interpreter will resolve it .
Since anaconda was installed, trying it with the IDE Spyder executes the code just fine without the overwrite prompt. It works on others (e.g PyCharm, Rodeo, etc.) as well.

IDLE Python not detecting changes

I am using IDLE to write a few small sized Python programs. There are two class files - node.py (Node Class) and position.py (Position class). I have my main module code in main.py from which I instantiate Node and Position objects.
What I have noticed is that - when I make a change in node.py or position.py, check the modules and then run them using F5 the changes are not reflected back when I run main.py as long as all the files are open in IDLE. I noticed that I have to manually close all the three .py files and then close IDLE, start over again and run main.py to see the changes made in node.py and position.py.
What is the issue here? Are my environment variables not being set correctly? I have searched SO and online but have not found a satisfactory answer.
[Details: I am using IDLE version 2.7.3 in Ubuntu. All the three .py files and the corresponding .pyc byte code files are in the same directory. This directory is also seen in sys.path]
What was happening is that I needed to use "import node" but I was using "from node import *" from main.py. This was preventing the main.py from linking to the updated node module!
(Sorry for accepting my own answer, but may be someone would also face the same problem later and hence I am uploading the solution)
I used Ctrl+F6 as Matthew Plourde suggested. Using Python 3 and IDLE, I would have my test file and my core file open. I would then fix errors reported by my assertions in my test file in my core file but the test file would not see the changes. The only solution I had was closing and reopening which is a pain. Ctrl+F6 did work. I could not find the reload function in Python3.
I retract this statement. With python3, if you run IDLE a "-n" because of lack of admin rights or some other security reason you need to import imp and use imp.reload(function) for IDLE to pickup any changes to other python files you are editing and recalling. Otherwise python does not detect the changes and will not reload the files.
http://docs.python.org/3.0/library/imp.html#imp.reload

nose.run() seems to hold test files open after the first run

I'm having the same problem on Windows and Linux. I launch any of various python 2.6 shells and run nose.py() to run my test suite. It works fine. However, the second time I run it, and every time thereafter I get exactly the same output, no matter how I change code or test files. My guess is that it's holding onto file references somehow, but even deleting the *.pyc files, I can never get the output of nose.run() to change until I restart the shell, or open another one, whereupon the problem starts again on the second run. I've tried both del nose and reload(nose) to no avail.
Solved* it with some outside help. I wouldn't consider this the proper solution, but by searching through sys.modules for all of my test_modules (which point to *.pyc files) and deling them, nose finally recognizes changes again. I'll have to delete them before each nose.run() call. These must be in-memory versions of the pyc files, as simply deleting them out in the shell wasn't doing it. Good enough for now.
Edit:
*Apparently I didn't entirely solve it. It does seem to work for a bit, and then all of a sudden it won't anymore, and I have to restart my shell. Now I'm even more confused.

Python "run" and "reload" not showing the changes to my code

I have a simple question. I am in the process of debugging some code. I am using Enthought Python, with the "PyLab" program. I edit my code using gEdit. I am using Ubuntu 10.04.4 LTS.
I use "run myfile.py" to run the program. Then I test myfile(somearguments), and see where the bugs are.
However, when I make changes to the code, using "run myfile.py" again does not properly update what Python/PyLab on the changes to my code. The result is that I will get error messages back pointing to lines that have no errors, and don't even have the "trouble" text in them anymore. I tried using import and reload as well, but that didn't work.
How do I get Python/PyLab to see the new changes to my code? The only option I have for now is to fix the bug and then restart PyLab to confirm the fix.
Thanks!
Did you try to remove the pyc file ?
It may happen as the pyc file exists that PyLab keeps reading it without reloading the file.

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