========================= NumPy 1.6.2 Release Notes

This is a bugfix release in the 1.6.x series. Due to the delay of the NumPy 1.7.0 release, this release contains far more fixes than a regular NumPy bugfix release. It also includes a number of documentation and build improvements.

Issues fixed

numpy.core

• #2063: make unique() return consistent index
• #1138: allow creating arrays from empty buffers or empty slices
• #1446: correct note about correspondence vstack and concatenate
• #1149: make argmin() work for datetime
• #1672: fix allclose() to work for scalar inf
• #1747: make np.median() work for 0-D arrays
• #1776: make complex division by zero to yield inf properly
• #1675: add scalar support for the format() function
• #1905: explicitly check for NaNs in allclose()
• #1952: allow floating ddof in std() and var()
• #1948: fix regression for indexing chararrays with empty list
• #2017: fix type hashing
• #2046: deleting array attributes causes segfault
• #2033: a**2.0 has incorrect type
• #2045: make attribute/iterator_element deletions not segfault
• #2021: fix segfault in searchsorted()
• #2073: fix float16 array_interface bug

numpy.lib

• #2048: break reference cycle in NpzFile
• #1573: savetxt() now handles complex arrays
• #1387: allow bincount() to accept empty arrays
• #1899: fixed histogramdd() bug with empty inputs
• #1793: fix failing npyio test under py3k
• #1936: fix extra nesting for subarray dtypes
• #1848: make tril/triu return the same dtype as the original array
• #1918: use Py_TYPE to access ob_type, so it works also on Py3

numpy.distutils

• #1261: change compile flag on AIX from -O5 to -O3
• #1377: update HP compiler flags
• #1383: provide better support for C++ code on HPUX
• #1857: fix build for py3k + pip
• BLD: raise a clearer warning in case of building without cleaning up first
• BLD: follow build_ext coding convention in build_clib
• BLD: fix up detection of Intel CPU on OS X in system_info.py
• BLD: add support for the new X11 directory structure on Ubuntu & co.
• BLD: add ufsparse to the libraries search path.
• BLD: add 'pgfortran' as a valid compiler in the Portland Group
• BLD: update version match regexp for IBM AIX Fortran compilers.

numpy.random

• BUG: Use npy_intp instead of long in mtrand

Changes

numpy.f2py

• ENH: Introduce new options extra_f77_compiler_args and extra_f90_compiler_args
• BLD: Improve reporting of fcompiler value
• BUG: Fix f2py test_kind.py test

numpy.poly

• ENH: Add some tests for polynomial printing
• ENH: Add companion matrix functions
• DOC: Rearrange the polynomial documents
• BUG: Fix up links to classes
• DOC: Add version added to some of the polynomial package modules
• DOC: Document xxxfit functions in the polynomial package modules
• BUG: The polynomial convenience classes let different types interact
• DOC: Document the use of the polynomial convenience classes
• DOC: Improve numpy reference documentation of polynomial classes
• ENH: Improve the computation of polynomials from roots
• STY: Code cleanup in polynomial [*]fromroots functions
• DOC: Remove references to cast and NA, which were added in 1.7