if all other iterators were very advanced before.

C implementation.

bytes data. Patch by Jonas Wagner.

#11379: rephrase minidom documentation to use the term "minimal" instead of "lightweight".  Patch by Éric Araujo.

with truncated header or footer.
Added tests for reading truncated gzip and bzip2 files.

This is a backport of changeset 8c07ff7f882f.

unicode-escape decoder requires memory for result corresponding to input size.
Fixes test for issue #16335.

Patch by Jeffrey Armstrong.

when result of PyLong_AsLong() narrowed to int without checks.

This is a backport of changesets 13e2e44db99d and 525407d89277.

strings with whitespaces, backslashes or unbalanced braces.

in any mapping, not only in an unicode string.

Issue #16922: fixed findtext() to return empty Unicode string instead of empty bytes object when there's no text.

Patch by Serhiy Storchaka.

could be the cause of a random failure).

special characters in the file path.

returns ESRCH for a zombie process, which is not POSIX-compliant.