[Fixed]-Using regex on Charfield in Django

Regex are great, but sometimes it is more simpler and readable to use other approaches. For example, How about just using builtin types to check for the type

try:
    att_name = float(att.name)
    ret = "Integer" if att_name.is_integer() else "Float"
except ValueError:
    ret = "String"

FYI, your regex code works perfectly fine. You might want to inspect the data that is being checked.

Demo:

>>> import re
>>> a = re.compile('^\d+$')
>>> b = re.compile('^\d+\.\d+$')
>>> a.match('10')
<_sre.SRE_Match object at 0x10fe7eb28>
>>> a.match('10.94')
>>> b.match('10')
>>> b.match('10.94')
<_sre.SRE_Match object at 0x10fe7eb90>
>>> a.match("string")
>>> b.match("string")