Merge branch 'extras' into 'master'

requires.txt is not mandatory for metadata generator

See merge request !5

.gitlab-ci.yml

@@ -14,7 +14,7 @@ pycodestyle:
   stage: test
   image: it4innovations/docker-pycheck:latest
   script:
-  - pycodestyle --max-line-length=100 *.py
+  - pycodestyle --max-line-length=100 --ignore=E265 *.py
 
 pylint:
   stage: test
@@ -51,7 +51,10 @@ build:
 Install test:
   stage: check
   image: it4innovations/docker-pypi:latest
+  before_script:
+    - virtualenv .venv
   script:
+    - source .venv/bin/activate
     - pip install dist/pipdeps*tar.gz
     - pipdeps -l || true
     - pipdeps -u

README.md

@@ -4,6 +4,13 @@ Pipdeps shows/upgrades outdated packages with respect to existing dependencies.
 
 Python 2.7 is required.
 
+In principle, resolving dependencies and requirements of all packages and
+their versions is easy. Unfortunately, computing resources of standard
+computer may not be sufficient even for little group of packages/versions.
+In an effort to decrease number of possibilities, we make some attempts to
+solve partial tasks. On the other hands, it may lead to some unwanted
+situations. Currently, package extras are not finished.
+
 ## Usage
 
 ```console

setup.py

 """
 pipdeps setup
 """
-from setuptools import setup, find_packages
+from distutils.core import setup
+import setuptools  # noqa
+#from setuptools import setup, find_packages
 
 setup(
     name='pipdeps',
@@ -19,7 +21,7 @@ setup(
     author_email='support@it4i.cz',
     url='https://code.it4i.cz/sccs/pip-deps',
     license='GPLv3+',
-    packages=find_packages(),
+    packages=setuptools.find_packages(),
     namespace_packages=['pipdeps'],
     include_package_data=True,
     zip_safe=False,
@@ -28,8 +30,8 @@ setup(
     setup_requires=['mustache', 'pystache', 'setuptools-git-version', 'setuptools-markdown'],
     install_requires=[
         'packaging',
-        'pipdeptree',
         'tabulate',
+        'wheel',
     ],
     entry_points={
         'console_scripts': [