Hi I have this function that maps and joins the elements of a list into a string. My question is that is there was a way to add quotation marks around all the elements that are originally strings in the list.
def blahblahblah(input):
code = "result = %s\n" % (", ".join(map(str, input)))
print code
x = ["dasdad", 131]
blahblahblah(x)
//normal output ------result = dasdad, 131
//desired output ------result = 'dasdad', 131
Padraic has already answered your stated question quite well, so I won't duplicate his work here. Instead, I'm taking a leap and attempting to answer your question in a more general form.
It looks like you're trying to recreate Python literals in your formatted output. For objects like strings and numbers, the built-in repr function will do this for you.
>>> def blahblahblah(input):
... code = "result = %s\n" % (", ".join(map(repr, input))) # Map repr instead of str
... print code
...
>>> blahblahblah(["dasdad", 131])
result = 'dasdad', 131
repr is one of the most versatile Python builtins for exploring and debugging, and its utility certainly isn't limited to string formatting. If you're not familiar with it already, I strongly suggest you become so!
You can map str.format wrapping each element in whatever you want:
def blahblahblah(inp):
code = "result = {}\n".format(", ".join(map("'{}'".format, inp)))
print code
So each element in your list will be wrapped in quotes in your output:
In [2]: x = ['dasdad', 131]
In [3]: blahblahblah(x)
result = 'dasdad', '131'
Or for just the str types, use isinstance:
def blahblahblah(inp):
code = "result = {}\n".format(", ".join(['"{}"'.format(s) if isinstance( s, str) else str(s) for s in inp)])
print code
Which gives you:
In [5]: x = ["dasdad", 131]
In [6]: blahblahblah(x)
result = 'dasdad', 131
you can add quotation mark to string first.
x = [ "\"" + i +"\"" if isinstance(i,str) else i for i in x]
code = "result = %s\n" % (", ".join(map(str, x)))
print code
result = "dasdad", 131
print "result = %s\n" % (", ".join(map(str, ["\"" + i +"\"" if isinstance(i,str) else i for i in x])))
