Question

I have a form in django template. In the view that gets data from this form, I need to check if the entry is ‘str’ or ‘int’. If it’s ‘str’, I have to raise an error. But when I check the type of the entry by using:

pr = request.GET['pr no']
print "Type of PR:%s" % type(pr)

irrespective of the ‘pr’ being string or integer, type() function returns ‘unicode’. How do I go about it?
Thanks

Answer 1

Well, obviously .GET['pr no'] always returns a Unicode object then.

Whether that string contains an integer can be tested:

if pr.isdigit():   # ASCII digits

or

if pr.isnumeric(): # also Unicode digits

Alternatively, you could do

try:
    int(pr)
except ValueError:
    print "PR is not an integer"

or check for any valid number:

try:
    float(pr)
except ValueError:
    print "PR is not a number"