fixed package data in setup.py after pull request

Dockerfile

@@ -9,7 +9,7 @@ WORKDIR /opt
 # install OpenCCG for surface realization, then install pypolibox
 RUN wget https://downloads.sourceforge.net/project/openccg/openccg/openccg%20v0.9.5%20-%20deplen%2C%20kenlm%2C%20disjunctivizer/openccg-0.9.5.tgz && \
     tar -xvzf openccg-0.9.5.tgz && \
-    git clone https://github.com/arne-cl/pypolibox
+    git clone https://github.com/arne-cl/pypolibox.git
 
 WORKDIR /opt/pypolibox
 RUN python setup.py install

setup.py

@@ -15,6 +15,37 @@
     install_requires = ["lxml", "nltk", "pexpect", "pyaml", "sphinxcontrib-napoleon"]
 
 
+def gen_data_files(src_dir):
+    """
+    generates a list of files contained in the given directory (and its
+    subdirectories) in the format required by the ``package_data`` parameter
+    of the ``setuptools.setup`` function.
+
+    Parameters
+    ----------
+    src_dir : str
+        (relative) path to the directory structure containing the files to
+        be included in the package distribution
+
+    Returns
+    -------
+    fpaths : list(str)
+        a list of file paths
+    """
+    fpaths = []
+    base = os.path.dirname(src_dir)
+    for root, dir, files in os.walk(src_dir):
+        if len(files) != 0:
+            for f in files:
+                fpaths.append(os.path.relpath(os.path.join(root, f), base))
+    return fpaths
+
+
+package_data_list = gen_data_files('data/*')
+package_data_list.extend(gen_data_files('grammar/*'))
+package_data_list.append('avm.sty')
+
+
 setup(name='pypolibox',
     version=version,
     description="text generation for product recommendations using OpenCCG",
@@ -34,7 +65,7 @@
     license='GPL Version 3',
     packages=['pypolibox'],
     package_dir = {'pypolibox': "src/pypolibox"},
-    package_data = {'pypolibox': ['data/*', 'grammar/*', 'avm.sty']},
+    package_data = {'pypolibox': package_data_list},
     zip_safe=False,
     install_requires=install_requires,
     entry_points={