python iterate and change string

Question

s = "fff555#$%^"
f =filter(str.isalpha, s)
print("f", f)

I thought I could iterate over s and filter each character in s by str.isalpha function.

I do not want to use regex.

simonzack · Accepted Answer · 2014-10-14 14:36:34Z

4

You want to join after filtering, as filter returns a generator.

s = "fff555#$%^"
f = ''.join(filter(str.isalpha, s))
print("f", f)

answered Oct 14, 2014 at 14:36

simonzack

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2 Comments

Where would one find documentation regarding "generator". The docs I followed stated: "filter - Construct a list from those element"...

@Paul The behavior of filter changed in Python 3. See the Python 3 docs.