PyPI now supports Markdown, we no longer nead to convert it

More information on
https://dustingram.com/articles/2018/03/16/markdown-descriptions-on-pypi/

doc/DEVELOPMENT.md

@@ -34,9 +34,7 @@ by passing the parameter `--system-site-packages` to `virtualenv`.
 
 ## Releasing a new Version
 
- * Make sure to install `pandoc`, otherwise the documentation cannot be
-   converted to the correct format that PyPI needs.
-   You also need `twine`.
+ * You need `twine>=1.11.0` to be installed.
 
  * Define next version number, e.g., from `1.1-dev` to `1.1`.
    Add an according entry to `CHANGELOG.md` and commit.

release.sh

@@ -34,12 +34,8 @@ if [ -z "$DEBEMAIL" ]; then
   echo "Please define environment variable DEBEMAIL with your name you want to use for the Debian package."
   exit 1
 fi
-if ! which pandoc > /dev/null; then
-  echo 'Please install pandoc, e.g. with "sudo apt-get install pandoc".'
-  exit 1
-fi
 if ! which twine > /dev/null; then
-  echo 'Please install twine, e.g. with "pip3 install --user twine".'
+  echo 'Please install twine>=1.11.0, e.g. with "pipx install twine" or "pip3 install --user twine".'
   exit 1
 fi
 
@@ -65,7 +61,7 @@ virtualenv -p /usr/bin/python3 --system-site-packages "$TEMP3"
 git clone "file://$DIR" "$TEMP3/benchexec"
 pushd "$TEMP3/benchexec"
 pip install -e "."
-pip install pypandoc
+pip install 'wheel>=0.31.0' 'setuptools>=38.6.0'
 python setup.py nosetests
 python setup.py sdist bdist_egg bdist_wheel
 popd
@@ -80,7 +76,7 @@ virtualenv -p /usr/bin/python2 "$TEMP2"
 git clone "file://$DIR" "$TEMP2/benchexec"
 pushd "$TEMP2/benchexec"
 pip install -e "."
-pip install pypandoc
+pip install 'setuptools>=38.6.0'
 python setup.py test
 python setup.py bdist_egg
 popd

setup.py

@@ -40,12 +40,8 @@
 
 # Get the long description from the relevant file
 readme = os.path.join(os.path.abspath(os.path.dirname(__file__)), 'README.md')
-try:
-    import pypandoc
-    long_description = pypandoc.convert(readme, 'rst', format='markdown_github-hard_line_breaks')
-except (IOError, ImportError):
-    with open(readme, 'rb') as f:
-        long_description = f.read().decode('utf-8')
+with open(readme, 'rb') as f:
+    long_description = f.read().decode('utf-8')
 
 PY2 = sys.version_info[0] == 2
 
@@ -55,6 +51,7 @@
     author = 'Dirk Beyer',
     description = ('A Framework for Reliable Benchmarking and Resource Measurement.'),
     long_description = long_description,
+    long_description_content_type = "text/markdown",
     url = 'https://github.com/sosy-lab/benchexec/',
     license = 'Apache 2.0 License',
     keywords = 'benchmarking resource measurement',