I am working on a script that checks format of data files ( like csv)
I apply various rules on each field: max length , empty field, value boundery, regex to match (check valid emails) etc...
These rules a in a dictionary (each collum have is one) :
#column 1 : integer from 1 to 99, except 10
{
"minval":1,
"forbiddenvals": [10,15],
"maxval":100
}
My function definition is the following :
def vercol(data,
empty=False,isadate = None,
minlen=None,maxlen=None,
minval=None,maxval=None,
allowedvals=[],forbiddenvals=[],
regex =None):
"""
Verify if the field 'data' checks the rules
Parameters /Rules
----------
empty : Boolean, optional
set to True if empty field is accepted. The default is False.
minlen : integer, optional
If set, minimum length for the field.
maxlen : integer, optional
If set, maximum length for the field.
forbidenvals : List, optional
List of rejected values.
(...)
Returns
-------
True if all the rules are met.
"xError" if a test failled, where x depend of the wich test failed FIRST
"""
if data == "":
return True if empty else "EmptyFieldError"
if minlen and len(data) < int(minlen):
return "MinLengthError"
....
other rules
....
return True
The function works without fine when I call parameters normally:
What I want to do is to pass the dictionary like this :
rules = {
"minval":1,
"forbiddenvals": [10,15],
"maxval":100
}
result = vercol(field, rules)
#foo
Problem: it doesn't work, the parameters only use their default value despite being in the dict.
#works fine
vercol('abcdefghi', maxlen=4) #return "MaxLenError"
vercol('', maxlen=4) #return "EmptyFieldError"
vercol('', empty=True) #return True
#problem
rule = {"maxlen":4,"empty":False}
vercol('',rule) #retuns True , expected : "EmptyFieldError"
vercol('abcdefgh',rule) #retuns True , expected : "MaxLenError"
Any clue to solve this ?
