Updated sources for error code refactoring.

Added all libssh2 error codes to ssh2.error_codes.
Added flake8 configuration for cython.
Updated setup.py with global cython directives - removed per file directives.
Updated all cython files for PEP-8.
Added contributing guide, code of conduct and github issue template.
Updated readme.

Author: Pan

.github/CONTRIBUTING.rst

@@ -0,0 +1,74 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, gender identity and expression, level of experience,
+nationality, personal appearance, race, religion, or sexual identity and
+orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+  address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at [INSERT EMAIL ADDRESS]. All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at [http://contributor-covenant.org/version/1/4][version]
+
+[homepage]: http://contributor-covenant.org
+[version]: http://contributor-covenant.org/version/1/4/

.github/code_of_conduct.md

@@ -0,0 +1,18 @@
+### Directions
+
+_Issue tracker is for actionable bug reports, issues with the code and feature requests._
+_For general questions use the [mail group](https://groups.google.com/forum/#!forum/ssh2-python)._
+_Remove this section and everything on and above this line._
+
+### Bug reports
+
+__Steps to reproduce:__
+
+1. Example code that produces error.
+2. Stack trace or error messages.
+
+__Expected behaviour:__ [What was expected to happen.]
+
+__Actual behaviour:__ [What actually happened.]
+
+__Additional info:__ [Include version of ``libssh2`` and any other relevant information.]

.github/issue_template.md

@@ -19,12 +19,15 @@ ______________
 
 System packages are available on the `latest releases page <https://github.com/ParallelSSH/ssh2-python/releases/latest>`_ built on Centos/RedHat 6/7, Ubuntu 14.04/16.04, Debian 7/8 and Fedora 22/23/24.
 
+The library has *no dependencies* other than ``libssh2``.
+
 
 Installation from Source
 _________________________
 
 Install ``libssh2`` and Python header files.
 
+
 Ubuntu
 --------
 
@@ -57,11 +60,14 @@ In addition, as ``ssh2-python`` is a thin wrapper of ``libssh2`` with Python sem
 Quick Start
 _____________
 
-
-Both byte and unicode strings are accepted as arguments and encoded appropriately. To change default encoding change the value of ``ssh2.utils.ENCODING``. Channel output is always byte strings.
+Both byte and unicode strings are accepted as arguments and encoded appropriately. To change default encoding, ``utf-8``, change the value of ``ssh2.utils.ENCODING``. Channel output is always byte strings.
 
 See `Complete Example`_ for a complete example including socket connect.
 
+Please use either the issue tracker for reporting issues with code or the `mail group`_ for discussion and questions.
+
+Contributions are most welcome!
+
 
 Authentication Methods
 -------------------------
@@ -220,7 +226,7 @@ ________________________________________
 
 
 * SSH channel operations (exec,shell,subsystem) and methods
-* SSH agent
+* SSH agent functionality
 * Public key authentication and management
 * SFTP operations
 * SFTP file handles and attributes
@@ -277,3 +283,4 @@ Performance of above example, compared with Paramiko.
 .. _libssh2: https://www.libssh2.org
 .. _Cython: https://www.cython.org
 .. _`examples directory`: https://github.com/ParallelSSH/ssh2-python/tree/master/examples
+.. _`mail group`: https://groups.google.com/forum/#!forum/ssh2-python

README.rst

@@ -9,3 +9,6 @@ universal = 0
 
 [flake8]
 max-line-length = 80
+filename = *.pyx,*.px*
+exclude = .eggs,*.egg,build
+ignore = E901,E225,E226,E227,E999

setup.cfg

@@ -27,8 +27,15 @@
 # _comp_args = ["-ggdb"]
 _comp_args = ["-O3"]
 _embedded_lib = bool(os.environ.get('EMBEDDED_LIB'))
-cython_args = {'cython_compile_time_env': {'EMBEDDED_LIB': _embedded_lib}} \
-              if USING_CYTHON else {}
+cython_directives = {'embedsignature': True,
+                     'boundscheck': False,
+                     'optimize.use_switch': True,
+                     'wraparound': False,
+}
+cython_args = {
+    'cython_directives': cython_directives,
+    'cython_compile_time_env': {'EMBEDDED_LIB': _embedded_lib}} \
+    if USING_CYTHON else {}
 
 extensions = [
     Extension(sources[i].split('.')[0].replace('/', '.'),