Rez

[Source](https://github.com/AcademySoftwareFoundation/rez/tree/2.46.0) | [Diff](https://github.com/AcademySoftwareFoundation/rez/compare/2.45.1...2.46.0)

**Notes**

Last round of Py3 updates (not counting further bugfixes found from testing).

Please take note if you notice any changes in performance in Py2. This release includes a number of changes
from methods like `iteritems` to `items`, which in Py2 means a list construction rather than just an iterator.
Tests have shown performance to be identical, but you may find a case where it is not.

**Merged pull requests:**

- py3 iterators conversion [\736](https://github.com/AcademySoftwareFoundation/rez/pull/736) ([maxnbk](https://github.com/maxnbk))
- py3 finalizations [\742](https://github.com/AcademySoftwareFoundation/rez/pull/742) ([maxnbk](https://github.com/maxnbk))

[Source](https://github.com/AcademySoftwareFoundation/rez/tree/2.45.1) | [Diff](https://github.com/AcademySoftwareFoundation/rez/compare/2.45.0...2.45.1)

**Notes**

Misc Py3 compatibility updates, part 4.

**Merged pull requests:**

- robust py2/3 use of getargspec/getfullargspec [\743](https://github.com/AcademySoftwareFoundation/rez/pull/743) ([nerdvegas](https://github.com/nerdvegas))
- address 744 (rex dictmixin issue) [\745](https://github.com/AcademySoftwareFoundation/rez/pull/745) ([maxnbk](https://github.com/maxnbk))

**Closed issues:**

- 712 merged in 2.43.0 caused external environ not to pass through to resolve [\744](https://github.com/AcademySoftwareFoundation/rez/issues/744)

[Source](https://github.com/AcademySoftwareFoundation/rez/tree/2.45.0) | [Diff](https://github.com/AcademySoftwareFoundation/rez/compare/2.44.2...2.45.0)

**Notes**

Misc Py3 compatibility updates, part 3.

**Merged pull requests:**

- bytecode / pycache related changes [\733](https://github.com/AcademySoftwareFoundation/rez/pull/733) ([maxnbk](https://github.com/maxnbk))
- address py3.8 deprecation of collections direct ABC access [\740](https://github.com/AcademySoftwareFoundation/rez/pull/740) ([maxnbk](https://github.com/maxnbk))
- fix metaclass usage in example code [\741](https://github.com/AcademySoftwareFoundation/rez/pull/741) ([maxnbk](https://github.com/maxnbk))
- Vendor readme [\738](https://github.com/AcademySoftwareFoundation/rez/pull/738) ([nerdvegas](https://github.com/nerdvegas))

[Source](https://github.com/AcademySoftwareFoundation/rez/tree/2.44.2) | [Diff](https://github.com/AcademySoftwareFoundation/rez/compare/2.44.1...2.44.2)

**Merged pull requests:**

- install variant.json file in the same manner as other extra install files [\731](https://github.com/AcademySoftwareFoundation/rez/pull/731) ([nerdvegas](https://github.com/nerdvegas))

**Closed issues:**

- permissions failure on release (variant.json) [\730](https://github.com/AcademySoftwareFoundation/rez/issues/730)

[Source](https://github.com/AcademySoftwareFoundation/rez/tree/2.44.1) | [Diff](https://github.com/AcademySoftwareFoundation/rez/compare/2.44.0...2.44.1)

**Notes**

Misc Py3 compatibility updates, part 2.

**Merged pull requests:**

- update imports in vendored pydot for py3 [\728](https://github.com/AcademySoftwareFoundation/rez/pull/728) ([maxnbk](https://github.com/maxnbk))
- update vendored schema for py3 [\729](https://github.com/AcademySoftwareFoundation/rez/pull/729) ([maxnbk](https://github.com/maxnbk))

[Source](https://github.com/AcademySoftwareFoundation/rez/tree/2.44.0) | [Diff](https://github.com/AcademySoftwareFoundation/rez/compare/2.43.0...2.44.0)

**Notes**

Misc Py3 compatibility updates, part 2.

**Merged pull requests:**

- pull basestring from six.string_types - py2 gets basestring, py3 gets str [\721](https://github.com/AcademySoftwareFoundation/rez/pull/721) ([maxnbk](https://github.com/maxnbk))
- import StringIO from six.moves [\722](https://github.com/AcademySoftwareFoundation/rez/pull/722) ([maxnbk](https://github.com/maxnbk))
- update vendored colorama from 0.3.1 to 0.4.1 [\723](https://github.com/AcademySoftwareFoundation/rez/pull/723) ([maxnbk](https://github.com/maxnbk))
- update vendored memcache from 1.5.3 to 1.5.9 [\724](https://github.com/AcademySoftwareFoundation/rez/pull/724) ([maxnbk](https://github.com/maxnbk))
- make Version properly iterable in py3 [\725](https://github.com/AcademySoftwareFoundation/rez/pull/725) ([maxnbk](https://github.com/maxnbk))
- modernize function manipulations and attrs [\727](https://github.com/AcademySoftwareFoundation/rez/pull/727) ([maxnbk](https://github.com/maxnbk))