import user defined modules into pydev

Question

I am a beginner to Eclipse neon + Pydev combo. Trying to use python modules I created into other modules I will be creating. For a start, I was going to use TKinter tutorial program outlined here: http://effbot.org/tkinterbook/tkinter-hello-again.htm

In addition to printing a statement in response to a mouse click, I want to run a small module, fibo.py

Here's my code:

import the library
from tkinter import *

import fibo

class App:

    def __init__(self, master):

            frame = Frame(master)
            frame.pack()

            self.button = Button(
            frame, text="QUIT", fg="red", command=frame.quit
            )
            self.button.pack(side=LEFT)

            self.hi_there = Button(frame, text="Hello",command=self.say_hi)
            self.hi_there.pack(side=LEFT)

    def say_hi(self):
        fib(100)
        print ("hi there, everyone!")

root = Tk()

app = App(root)

root.mainloop()
root.destroy() # optional; see description below

Here's fibo.py

def fib(n):    # write Fibonacci series up to n
    a, b = 0, 1
    while b < n:
    print (b, end=" ")
    a, b = b, a+b

def fib2(n):   # return Fibonacci series up to n
    result = []
    a, b = 0, 1
    while b < n:
    result.append(b)
    a, b = b, a+b
    return result

Both modules are in the same project and workspace. The editor says,"unresolved import fibo" Why is the module fibo not recognized by in pydev/eclipse?

My ultimate goal is to run a module upon button click. If there's a more direct way to accomplish this, I would like to know.

You probably have some issue in your interpreter configuration... can you post a screenshot of the PyDev package explorer for your project to help diagnose it? (Also, have you gone through the PyDev Getting started? http://www.pydev.org/manual_101_root.html) — Fabio Zadrozny, Mar 31 '17 at 11:06
Yes, I went through the getting started guide to configure the editor properly.Not sure how to post images Fabio. New to this forum as well. — sdidde, Apr 01 '17 at 00:34
Here's a link to the screen-shot, Fabio Zadrozny: https://drive.google.com/open?id=0B9rTz9muFfMkRFA2aFlKWVBtTWM — sdidde, Apr 01 '17 at 08:45

Fabio Zadrozny · Accepted Answer · 2017-04-03T13:35:34.017

Ok, so, based on your screenshot, the structure you have is actually:

/project (this is the PYTHONPATH root and marked as source folder)
/project/root
/project/root/__init__.py
/project/root/nested
/project/root/nested/__init__.py
/project/root/nested/example.py
/project/root/nested/fibo.py

In this case, your import should be: from root.nested import fibo. Your code may work in the command line, but that's because you added an entry to sys.path only in runtime (so, PyDev can't follow that).

The other option would be moving both example.py and fibo.py to /project.

You can also use a relative import as from . import fibo, but then, to run the module as a __main__ module, you'll have to run modules by the module name (with the -m flag) -- you can configure PyDev to do that at the preferences > PyDev > Run > Launch modules with "python -m mod.name".

As a note, if you just write:

fibo in your case, and wait for the undefined variable error to be shown, you can use Ctrl+1 in that same line to get a suggestion which will write the import for you (or you can do a code-completion which will also write an import for you automatically).

Thank you Fabio. Really appreciate you taking the time to debug this for me. It is now working as expected. — sdidde, Apr 03 '17 at 22:03
@sdidde great that it's working for you now ;) As a note, if it answers your question, you should mark this as the accepted answer. — Fabio Zadrozny, Apr 04 '17 at 11:05
I just accepted it the right answer. Hopefully it will show up as such. Thanks again — sdidde, Apr 04 '17 at 20:11

import user defined modules into pydev

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