On 2014-10-30 11:10, Steven D'Aprano wrote:
Anton wrote:
Let's say I have an incoming list of values *l*. Every element of *l* can
be one of the following options:
1) an integer value
2) a string in form of '<int_value>', e.g. '7'
3) a string with a json serialization of an integer value, e.g. '"7"'
4) something else that should be ignored
I need to transform this list into another list with values from options
1)-3) coerced to int. The code below should do this.
I don't particularly like either version. I prefer this:
def load_int(obj):
if isinstance(obj, int):
# Case 1), an int, e.g. 7
return obj
elif isinstance(obj, str):
# Case 2) and 3), a str or JSON serialised int.
# E.g. '7' or '"7"'.
try:
return int(obj)
except ValueError:
return int(json.loads(obj))
raise TypeError('require int or str, got %s' % type(obj).__name__)
[snip]
How about:
int(str(obj).strip('"'))
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