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9 changes: 5 additions & 4 deletions Doc/faq/programming.rst
Original file line number Diff line number Diff line change
Expand Up @@ -851,10 +851,11 @@ For integers, use the built-in :func:`int` type constructor, e.g. ``int('144')
e.g. ``float('144') == 144.0``.

By default, these interpret the number as decimal, so that ``int('0144') ==
144`` and ``int('0x144')`` raises :exc:`ValueError`. ``int(string, base)`` takes
the base to convert from as a second optional argument, so ``int('0x144', 16) ==
324``. If the base is specified as 0, the number is interpreted using Python's
rules: a leading '0o' indicates octal, and '0x' indicates a hex number.
144`` holds true, and ``int('0x144')`` raises :exc:`ValueError`. ``int(string,
base)`` takes the base to convert from as a second optional argument, so ``int(
'0x144', 16) == 324``. If the base is specified as 0, the number is interpreted
using Python's rules: a leading '0o' indicates octal, and '0x' indicates a hex
number.

Do not use the built-in function :func:`eval` if all you need is to convert
strings to numbers. :func:`eval` will be significantly slower and it presents a
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