fix bad platform check

Author: pvsr

CHANGELOG.md

@@ -1,6 +1,7 @@
 # next
   - `contrib/qbpm.desktop`: add `MimeType` and `Keywords`, fix incorrect formatting of `Categories`
   - allow help text to be slightly wider to avoid awkward line breaks
+  - macOS: fix detection of qutebrowser binary in /Applications
 
 # 1.0rc4
   - `choose`: support `walker`, `tofi`, and `wmenu`

src/qbpm/paths.py

@@ -7,7 +7,7 @@
 
 def qutebrowser_exe() -> str:
     macos_app = "/Applications/qutebrowser.app/Contents/MacOS/qutebrowser"
-    if platform == "darwin" and Path(macos_app).exists():
+    if platform.system() == "Darwin" and Path(macos_app).exists():
         return macos_app
     else:
         return "qutebrowser"