How to check if a list is empty?

Question

How to check if a list is empty?

Possible duplicate:
Python: What is the best way to check if a pool is empty?

def CleanWhiteSpace(theDict):
    stuff=[]

    for key,value in theDict.items():
        for d in value:
            if value != " ":
                stuff.append(d)    
                print d
                theDict[key]=stuff
            if not value[d]:
                print value
        stuff=[]
    return theDict
    print CleanWhiteSpace({'a':['1','2'],'b':['3',' '],'c':[]})

I edited this because I need more help. How do you check if it is free c? Is it cjust equal []?

I tried ==[]and "[]"and got the length and == "", but nothing works.

+5

python arrays

Web master Jun 13 '12 at 23:43

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1 answer

jordanm · Accepted Answer · 2012-06-13T23:45:21+0000

In python, an empty list is False.

if not c:
   print "The list is empty"
else:
   print "The list is not empty"

How to check if a list is empty?

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