move executable check into util.py

gallery_dl/__init__.py

@@ -131,7 +131,7 @@ def main():
             import requests
 
             extra = ""
-            if getattr(sys, "frozen", False):
+            if util.EXECUTABLE:
                 extra = " - Executable"
             else:
                 git_head = util.git_head()

gallery_dl/config.py

@@ -38,7 +38,7 @@ else:
     ]
 
 
-if getattr(sys, "frozen", False):
+if util.EXECUTABLE:
     # look for config file in PyInstaller executable directory (#682)
     _default_configs.append(os.path.join(
         os.path.dirname(sys.executable),

gallery_dl/job.py

@@ -78,7 +78,7 @@ class Job():
         if version_info:
             self.kwdict[version_info] = {
                 "version"         : version.__version__,
-                "is_executable"   : getattr(sys, "frozen", False),
+                "is_executable"   : util.EXECUTABLE,
                 "current_git_head": util.git_head()
             }
 

gallery_dl/util.py

@@ -603,6 +603,7 @@ SECOND = datetime.timedelta(0, 1)
 WINDOWS = (os.name == "nt")
 SENTINEL = object()
 USERAGENT = "gallery-dl/" + version.__version__
+EXECUTABLE = getattr(sys, "frozen", False)
 SPECIAL_EXTRACTORS = {"oauth", "recursive", "test"}
 GLOBALS = {
     "contains" : contains,