properly single sourcing version

conda/meta.yaml

@@ -24,7 +24,7 @@ requirements:
     - numpy>=1.17.5
     - pandas>=1.0.0
     - pip>=20.0.2
-    - pysam>=0.15.2
+    - bioconda::pysam>=0.15.2
     - scipy>=1.4.1
     - statsmodels>=0.11.0
     - matplotlib>=3.1.1

pydamage/__init__.py

@@ -1,2 +1,2 @@
+__version__ = '0.1'
 from pydamage.main import analyze
-from pydamage.version import __version__

pydamage/main.py

@@ -9,7 +9,7 @@
 import sys
 from tqdm import tqdm
 import warnings
-from pydamage.version import __version__
+from pydamage import __version__
 
 def analyze(bam, wlen=30, show_al=False, mini=2000, cov=0.5, process=1, outdir="", plot = False, verbose=False, force=False):
     """Runs the pydamage analysis

setup.py

@@ -1,10 +1,23 @@
-from pydamage.version import __version__
 from setuptools import setup, find_packages
+import codecs
+import os.path
 
+def read(rel_path):
+    here = os.path.abspath(os.path.dirname(__file__))
+    with codecs.open(os.path.join(here, rel_path), 'r') as fp:
+        return fp.read()
+
+def get_version(rel_path):
+    for line in read(rel_path).splitlines():
+        if line.startswith('__version__'):
+            delim = '"' if '"' in line else "'"
+            return line.split(delim)[1]
+    else:
+        raise RuntimeError("Unable to find version string.")
 
 setup(
     name='pydamage',
-    version=__version__,
+    version=get_version("pydamage/__init__.py"),
     description='Damage parameter estimation for ancient DNA',
     long_description=open("README.md").read(),
     url='https://github.com/maxibor/pydamage',