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| -rw-r--r-- | Doc/library/functions.rst | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Doc/library/functions.rst b/Doc/library/functions.rst index f835dcf..3fcd694 100644 --- a/Doc/library/functions.rst +++ b/Doc/library/functions.rst @@ -247,6 +247,13 @@ are always available. They are listed here in alphabetical order. the function serves as a numeric conversion function like :func:`int` and :func:`float`. If both arguments are omitted, returns ``0j``. + .. note:: + + When converting from a string, the string must not contain whitespace + around the central ``+`` or ``-`` operator. For example, + ``complex('1+2j')`` is fine, but ``complex('1 + 2j')`` raises + :exc:`ValueError`. + The complex type is described in :ref:`typesnumeric`. |