added --version command and git tags

deploy.sh

@@ -4,4 +4,7 @@ python3 -m pip install --upgrade build && \
 python3 -m pip install --upgrade twine && \
 rm -rf dist && \
 python3 -m build && \
-python3 -m twine upload dist/*
+git --help && \
+python3 -m twine upload dist/* && \
+git tag "$(python3 pyensembl/version.py)" &&  \
+git push --tags

pyensembl/shell.py

@@ -41,17 +41,24 @@
 import argparse
 import logging.config
 import pkg_resources
-import os
 
-from .ensembl_release import EnsemblRelease, MAX_ENSEMBL_RELEASE
+from .ensembl_release import EnsemblRelease
+from .ensembl_versions import MAX_ENSEMBL_RELEASE
 from .genome import Genome
-from .species import Species
+from .version import __version__
 
 logging.config.fileConfig(pkg_resources.resource_filename(__name__, "logging.conf"))
 logger = logging.getLogger(__name__)
 
 
 parser = argparse.ArgumentParser(usage=__doc__)
+
+parser.add_argument(
+    "--version", 
+    action="version",
+    version='%(prog)s {version}'.format(version=__version__)
+)
+
 parser.add_argument(
     "--overwrite",
     default=False,

pyensembl/version.py

@@ -1 +1,7 @@
-__version__ = "2.3.9"
+__version__ = "2.3.10"
+
+def print_version():
+    print(f"v{__version__}")
+
+if __name__ == "__main__":
+    print_version()