release.py dependencies, linting

.github/workflows/release.yml

@@ -60,6 +60,7 @@ jobs:
       - name: Basic installation to check euphonic.__version__
         shell: bash -l {0}
         run: |
+          python -m pip install requests pyyaml
           python -m pip install .
 
       - name: Check version consistency, generate Github release page

build_utils/release.py

@@ -2,9 +2,10 @@
 import json
 import os
 import re
+
 import requests
-import subprocess
 import yaml
+
 from euphonic import __version__
 
 
@@ -18,9 +19,9 @@ def main():
 
 
 def release_github(test=True):
-    with open('CHANGELOG.rst') as f:
+    with open('CHANGELOG.rst', "rt", encoding="utf8") as f:
         changelog = f.read()
-    with open('CITATION.cff') as f:
+    with open('CITATION.cff', "rt", encoding="utf8") as f:
         citation = yaml.safe_load(f)
 
     euphonic_ver = __version__
@@ -30,7 +31,7 @@ def release_github(test=True):
     version_dict['CITATION.cff'] = 'v' + citation['version']
     for ver_name, ver in version_dict.items():
         if euphonic_ver != ver:
-            raise Exception((
+            raise ValueError((
                 f'euphonic.__version__/{ver_name} version mismatch! '
                 f'euphonic.__version__: {euphonic_ver} {ver_name}: '
                 f'{ver}'))