[enh] #100: make silkaj installable from pip:

- move main in `bin/silkaj`.
- fix variable naming.
- remove requirement.txt
- add setup.py with Python 3.7 compatibility: #98.

bin/silkaj

+#!/usr/bin/env python3
+
+from silkaj.network_tools import check_port, best_node
+from silkaj.silkaj import cli, manage_cmd
+
+if __name__ == '__main__':
+    ep, cli_args = cli()
+    check_port(ep["port"])
+    best_node(ep, 1)
+    manage_cmd(ep, cli_args)

requirements.txt

-commandlines
-ipaddress
-tabulate
-pynacl
-scrypt
-pyaes

setup.py

+import setuptools
+
+with open("README.md", "r") as fh:
+    long_description = fh.read()
+
+setuptools.setup(
+    name="silkaj",
+    version="0.6.0",
+    author="Moul",
+    author_email="moul@moul.re",
+    description="Command line client for Duniter",
+    long_description=long_description,
+    long_description_content_type="text/markdown",
+    url="https://git.duniter.org/clients/python/silkaj",
+    license='GNU AGPLv3',
+    packages=setuptools.find_packages(),
+    keywords='g1 duniter cryptocurrency librecurrency RTM',
+    classifiers=(
+        'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.6',
+        'Programming Language :: Python :: 3.5',
+        'Programming Language :: Python :: 3.4',
+        'Programming Language :: Python :: 3 :: Only',
+        "License :: OSI Approved :: GNU Affero General Public License v3",
+        "Operating System :: OS Independent",
+    ),
+    install_requires=[
+        "commandlines",
+        "ipaddress",
+        "tabulate",
+        "pynacl",
+        "scrypt",
+        "pyaes",
+    ],
+    scripts=[
+        'bin/silkaj',
+    ],
+)

silkaj/__init__.py

+name = "silkaj"

silkaj/silkaj.py

-#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
 from sys import stderr
@@ -97,7 +96,7 @@ def cli():
     return ep, cli_args
 
 
-def manage_cmd(ep, c):
+def manage_cmd(ep, cli_args):
 
     if cli_args.subcmd == "about":
         about()
@@ -127,7 +126,7 @@ def manage_cmd(ep, c):
         send_transaction(ep, cli_args)
 
     elif cli_args.subcmd == "cert":
-        send_certification(ep, c)
+        send_certification(ep, cli_args)
 
     elif cli_args.subcmd == "generate_auth_file":
         generate_auth_file(cli_args)
@@ -163,8 +162,3 @@ def about():
 \n            @@@@@@@@@@@@@@@\n")
 
 
-if __name__ == '__main__':
-    ep, cli_args = cli()
-    check_port(ep["port"])
-    best_node(ep, 1)
-    manage_cmd(ep, cli_args)