What’s new in h5py 2.7.1¶
2.7.1 is the first bug-fix release in the 2.7.x series.
GH903 Fixed critical issue with cyclic gc which resulted in segfaults
GH904 Avoid unaligned access fixing h5py on sparc64
GH883 Fixed compilation issues for some library locations
GH868 Fix deadlock between phil and the import lock in py2
GH841 Improve windows handling if filenames
GH874 Allow close to be called on file multiple times
GH902 Fix overflow computing size of dataset on windows
GH912 Do not mangle capitalization of filenames in error messages
GH842 Fix longdouble on ppc64le
Fix h5py segfaulting on some Python 3 versions¶
Through an intersection of Python Issue 30484 and GH888, it was
possible for the Python Garbage Collector to activate when closing
objects, which due to how dictionaries were iterated over in Python could
cause a segfault. GH903 fixes the Garbage Collector activating whilst
closing, whilst Python Issue 30484 had been fixed upstream (and backported
to Python 3.3 onwards).
Avoid unaligned memory access in conversion functions¶
Some architectures (e.g. SPARC64) do not allow unaligned memory access, which
can come up when copying packed structs. GH904 (by James Clarke) uses
memcpy to avoid said unaligned memory access.