问题

Here's my problem: I'm running the code in this example. I have Python 2.7 and 3 installed on my RaspberryPi but I have checked and double-checked, and I am running the code in 2.7. I've installed Pmw 2.0.0 under 2.7, not 3, but when I try to run, I get the "ImportError: No module named tkinter" error. I use Tkinter all the time, so it usually works fine, and I've done a search to verify that I'm definitely calling "Tkinter", not "tkinter", so I think it has to be a problem with Pmw, which also seems to be indicated by the traceback (posted in full at the bottom of my question). I can't for the life of me find a specific place where Pmw is looking for lower-case "tkinter", and I'm at a loss for how to work around this. I'm not eager to switch platforms--this is for work, so unless this is unfixable, I need to stick with Tkinter. Oh, and I am pretty new to Python, so I would love to find out that it's a simple problem that someone on here can spot easily.

import sys; print sys.path gives me:

['/home/pi/Desktop', '/home/pi', '/usr/bin', '/usr/local/lib/python2.7/dist-packages/distribute-0.6.28-py2.7.egg', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-linux2', '/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old', '/usr/lib/python2.7/lib-dynload', '/usr/local/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages', '/usr/lib/pymodules/python2.7']

The full traceback is:

Traceback (most recent call last):
  File "/home/pi/Desktop/LinkedMenusSample.py", line 151, in <module>
    Pmw.initialise(root)
  File "/usr/local/lib/python2.7/dist-packages/Pmw/Pmw_2_0_0/lib/PmwLoader.py", line 131, in __getattr__
    self._initialise()
  File "/usr/local/lib/python2.7/dist-packages/Pmw/Pmw_2_0_0/lib/PmwLoader.py", line 89, in _initialise
    raise ImportError(msg)
ImportError: No module named tkinter

回答1:

Maybe I can help you on how to remove the error.

here are two thoughts:

1) you use python 2.xx and have installed the python 3 pwm module (Tkinter was renamed to tkinter from Python 2 to 3)

2) you do the following before the import and hope it helps:

#import tkinter
#Traceback (most recent call last):
#  File "<pyshell#11>", line 1, in <module>
#    import tkinter
#ImportError: No module named tkinter

import sys, Tkinter
sys.modules['tkinter'] = Tkinter # put the module where python looks first for modules
#import tkinter # now works!

回答2:

Another workaround would be the following:

try:
    import tkinter
except:
    import Tkinter as tkinter

This way you would always have the module tkinter available and depending on the Python version your program loads tkinter or Tkinter.

回答3:

I was facing the same problem with matplotlib.pyplot (python 2.7+) in my CentOs. I solved the problem by just installing the tkinter. sudo yum install tkinter. Hope this can help you.

回答4:

you have imported wrong module use: import Tkinter

回答5:

rewritten script that runs on python 3.4.0 onwards

def add():
        print ("Enter the two numbers to Add")
        A=int(input("Enter A: "))
        B=int(input("Enter B: "))
        return A + B 

def sub():
        print ("Enter the two numbers to Subtract")
        A=int(input("Enter A: "))
        B=int(input("Enter B: "))
        return A - B

def mul():
        print ("Enter the two numbers to Multiply")
        A=int(input("Enter A: "))
        B=int(input("Enter B: "))
        return A * B

def div():
        print ("Enter the two number to Divide")
        A=float(input("Enter A: "))
        B=float(input("Enter B: "))
        return A / B

print ("1: ADDITION")
print ("2: SUBTRACTION")
print ("3: MULTIPLICATION")
print ("4: DIVISION")
print ("0: QUIT")

while True:

    CHOICE = int(input("ENTER THE CORRESPONDING NUMBER FOR CALCULATION ")) 

    if CHOICE == 1: 
        print ('ADDING TWO NUMBERS:')
        print (add())

    elif CHOICE == 2:
        print ('SUBTRACTING TWO NUMBERS')
        print (sub())

    elif CHOICE == 3:
        print ('MULTIPLYING TWO NUMBERS')
        print (mul())

    elif CHOICE == 4:
        print ("DIVIDEING TWO NUMBERS")
        print (div())

    elif CHOICE == 0:
        exit()
    else:
        print ("The value Enter value from 1-4")

来源：https://stackoverflow.com/questions/14587980/importerror-no-module-named-tkinter-when-using-pmw

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python