Switch version management to use setuptools_scm (#283)

* use setuptools_scm
* update requirements

.travis.yml

@@ -8,7 +8,6 @@ install:
 script:
   - python setup.py test
   - if [[ ${TRAVIS_PYTHON_VERSION:0:1} == "3" ]]; then pre-commit run --all-files; fi
-  - env
 deploy:
   provider: pypi
   user: "__token__"

requirements.in

@@ -1,4 +1,4 @@
 reportlab
-Pillow<6    # pillow 6 is not supported by reportlab
+Pillow
 pre-commit
 pytest

requirements.txt

@@ -2,27 +2,26 @@
 # This file is autogenerated by pip-compile
 # To update, run:
 #
-#    pip-compile
+#    pip-compile requirements.in
 #
 aspy.yaml==1.3.0          # via pre-commit
-atomicwrites==1.3.0       # via pytest
-attrs==19.1.0             # via pytest
+attrs==19.3.0             # via pytest
 cfgv==2.0.1               # via pre-commit
-identify==1.4.7           # via pre-commit
-importlib-metadata==0.23  # via pluggy, pre-commit, pytest
-more-itertools==7.2.0     # via pytest, zipp
+identify==1.4.8           # via pre-commit
+importlib-metadata==1.2.0  # via pluggy, pre-commit, pytest
+more-itertools==8.0.2     # via pytest, zipp
 nodeenv==1.3.3            # via pre-commit
 packaging==19.2           # via pytest
-pillow==5.4.1
-pluggy==0.13.0            # via pytest
-pre-commit==1.18.3
+pillow==6.2.1
+pluggy==0.13.1            # via pytest
+pre-commit==1.20.0
 py==1.8.0                 # via pytest
-pyparsing==2.4.2          # via packaging
-pytest==5.1.2
-pyyaml==5.1.2             # via aspy.yaml, pre-commit
-reportlab==3.5.26
-six==1.12.0               # via cfgv, packaging, pre-commit
+pyparsing==2.4.5          # via packaging
+pytest==5.3.1
+pyyaml==5.2               # via aspy.yaml, pre-commit
+reportlab==3.5.32
+six==1.13.0               # via cfgv, packaging, pre-commit
 toml==0.10.0              # via pre-commit
-virtualenv==16.7.5        # via pre-commit
+virtualenv==16.7.8        # via pre-commit
 wcwidth==0.1.7            # via pytest
 zipp==0.6.0               # via importlib-metadata

setup.py

@@ -1,18 +1,13 @@
 from setuptools import setup
 
-version = "3.8.5"
-
 setup(
     name="domdiv",
-    version=version,
     entry_points={"console_scripts": ["dominion_dividers = domdiv.main:main"]},
     package_dir={"": "src"},
     packages=["domdiv"],
-    install_requires=[
-        "reportlab==3.5.26",
-        "Pillow<6",
-    ],  # pillow 6 is not supported by reportlab
-    setup_requires=["pytest-runner"],
+    use_scm_version=True,
+    setup_requires=["setuptools_scm", "pytest-runner"],
+    install_requires=["reportlab", "Pillow"],
     tests_require=["pytest", "six", "pytest-flake8", "pre-commit"],
     url="http://domtabs.sandflea.org",
     include_package_data=True,

src/domdiv/__init__.py

@@ -1,3 +1,7 @@
-import pkg_resources
+from pkg_resources import get_distribution, DistributionNotFound
 
-__version__ = pkg_resources.require("domdiv")[0].version
+try:
+    __version__ = get_distribution("domdiv").version
+except DistributionNotFound:
+    # package is not installed
+    pass