Python Pocket Reference, 3rd Edition

Specific Built-in Types

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The following sections go into more detail on some of the

methods listed in Table 9. In all of the following that return a

string result, the result is a new string. (Because strings are

immutable, they are never modified in-place.) Whitespace

means spaces, tabs, and end-of-line characters (everything in

string.whitespace).

Searching

s.find(sub, [, start [, end]])

Returns offset of the first occurrence of string sub in s,

between offsets

start and end (which default to 0 and

len(s), the entire string). Returns -1 if not found.

s.rfind(sub, [, start [, end]])

Like find, but scans from the end (right to left).

S.lower()

S.lstrip([chars])

S.replace(old, new [, maxsplit])

S.rfind(sub [,start [,end]])

S.rindex(sub [, start [, end]])

S.rjust(width [, fillchar])

S.rsplit([sep [, maxsplit]])

S.rstrip([chars])

S.split([sep [,maxsplit]])

S.splitlines([keepends])

S.startswith(prefix [, start [, end]])

S.strip([chars])

S.swapcase()

S.title()

S.translate(table [, deletechars])

S.upper()

S.zfill(width)

Table 9. String method calls (continued)

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Python Pocket Reference

s.index(sub [, start [, end]])

Like find, but raises ValueError if not found instead of

returning

-1.

s.rindex(sub [, start [, end]])

Like rfind, but raises ValueError if not found instead of

returning

-1.

s.count(sub [, start [, end]])

Counts ...