Version is now not hardcoded into files, but is fetched from git.

Added pyproject.toml.
Removed unneeded pytest-runner from setup_requires.

.gitignore

@@ -1,3 +1,5 @@
+arpeggio/version.py
+
 *.py[cod]
 
 # C extensions
@@ -56,4 +58,4 @@ site
 .cache
 venv
 .ropeproject
-coverage
+coverage

arpeggio/__init__.py

@@ -19,8 +19,7 @@
 import bisect
 from arpeggio.utils import isstr
 import types
-
-__version__ = "1.11.0.dev"
+from .version import __version__
 
 if sys.version < '3':
     text = unicode

pyproject.toml

@@ -0,0 +1,7 @@
+[build-system]
+requires = ["setuptools>=41", "wheel", "setuptools_scm[toml]>=3.4.3"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools_scm]
+write_to_template = "__version__ = \"{version}\"\n"
+write_to = "arpeggio/version.py"

setup.cfg

@@ -33,8 +33,9 @@ classifiers =
 packages = find:
 include_package_data = True
 setup_requires =
-    pytest-runner
+    setuptools>=41
     wheel
+    setuptools_scm[toml]>=3.4.3
 tests_require = pytest
 
 [options.packages.find]
@@ -63,7 +64,7 @@ test=pytest
 
 [tool:pytest]
 addopts = --verbose
-python_files = arpeggio/tests/*.py 
+python_files = arpeggio/tests/*.py
 
 [flake8]
 ignore = E741,W503

setup.py

@@ -17,15 +17,6 @@
 import sys
 from setuptools import setup
 
-VERSIONFILE = "arpeggio/__init__.py"
-VERSION = None
-for line in open(VERSIONFILE, "r", encoding='utf8').readlines():
-    if line.startswith('__version__'):
-        VERSION = line.split('"')[1]
-
-if not VERSION:
-    raise RuntimeError('No version defined in arpeggio/__init__.py')
-
 if sys.argv[-1].startswith('publish'):
     if os.system("pip list | grep wheel"):
         print("wheel not installed.\nUse `pip install wheel`.\nExiting.")
@@ -43,4 +34,4 @@
         print("  git push --tags")
     sys.exit()
 
-setup(version=VERSION)
+setup()