[Python] Best way of separating data from python code

If have a method that matches strings to regex patterns in a dictionary and returns corresponding value.

# Module foo.py
class bar:
def __init__(self, patterns):
self._patterns = patterns

def baz(self, string)
for pattern, value in self._patterns:
# return value if string matches pattern


# In another module
patterns = {...}
obj = foo.bar(patterns)


I want a reusable dict of patterns. Does it make sense to move it to foo.py like

# foo.py
default_patterns = {...}

class bar:
...

# In another module
obj = foo.bar(foo.default_patterns)


Or should i use a json file? Something like

with open(filename) as file:
patterns = load(file)

obj = foo.bar(pattenrs)


In this case where do I keep this file? Also will it make sense to keep the path in the module as some PATTERN_FILENAME variable.

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