Keep 20.04 for py3.6 testing.
Replace the deprecated enchant package with enchant-2.

Additionally, rename sphinx configuration parameter master_doc to root_doc

Fixes: python-ldap#509

Move calling `unbind_s()` inside the locked region so that `self._l` is
handled atomically.

Add a new parameter `force` to either forcefully close any previous
connection or keep re-use the previous connection if it still is
supposed to work.

Signed-off-by: Diogo Teles Sant'Anna <diogoteles@google.com>

Fix broken links.

Fixes: python-ldap#460
Closes: python-ldap#543

Merge all header files except `constants_generated.h` into a single
header file `pythonldap.h`. A single header file makes it far easier to
port python-ldap to heap types and module state for Per-Interpreter GIL.

`pythonldap.h` uses new macros `PYLDAP_FUNC` and `PYLDAP_DATA` to declare
functions and data, which are used across C files.

Remove unused macro `streq`.

See: python-ldap#540
Signed-off-by: Christian Heimes <cheimes@redhat.com>

The C code had a few version checks for Python 2. python-ldap requires
Python >= 3.6.

Signed-off-by: Christian Heimes <cheimes@redhat.com>

Current description contains a sentence that miss a negative form, contradicting previous sentence and leaving the reader with an ambiguity.

Separate building and testing requirements for Debian

Use the name values for result types in syncrepl.py rather than the raw decimal values.

Signed-off-by: Quanah Gibson-Mount <quanah@openldap.org>

Update GitHub Actions.
Explicitly install python3-setuptools for Tox env runs on Fedora.

The cookie is saved with key `cookie` intead of `ldap_cookie` in the `self.__data` dict