Handle empty sequence in 'print_table'

Author: dmarteau

CHANGELOG.md

@@ -2,6 +2,9 @@
 
 ## Unreleased
 
+### Fixed
+
+* Handle empty sequence in 'print_table'
 
 ## 1.7.0 - 2025-09-01
 

qgis_plugin_manager/__main__.py

@@ -244,7 +244,7 @@ def outdated():
                             ("version", lambda n: str(n[0].version)),
                             ("latest", lambda n: n[1]),
                             ("folder", lambda n: n[0].install_folder),
-                            ("source", lambda n: n[2])
+                            ("source", lambda n: n[2]),
                         ),
                     )
                 else:
@@ -537,6 +537,7 @@ def plugin_versions_impl(args: Namespace):
 
     versions = plugins.get(args.plugin_name)
     if versions:
+
         def results() -> Iterator[Plugin]:
             for plugin in versions:
                 if plugin.is_pre() and not args.pre:
@@ -637,11 +638,7 @@ def pred(p):
         return True
 
     found = 0
-    for name, version in remote.search(
-        args.plugin_name,
-        predicat=pred,
-        latest=args.latest
-    ):
+    for name, version in remote.search(args.plugin_name, predicat=pred, latest=args.latest):
         echo.echo(f"{name}=={version}")
         found += 1
     if not found:

qgis_plugin_manager/utils.py

@@ -223,7 +223,7 @@ def getenv_bool(name: str) -> bool:
 
 def print_table(seq: Sequence[T], columns: Sequence[Tuple[str, Callable[[T], str]]]):
     def colw(col: str, key: Callable[[T], str]) -> int:
-        return max(max(len(key(n)) for n in seq), len(col))
+        return max(max((len(key(n)) for n in seq), default=0), len(col))
 
     cols = tuple((col, colw(col, key), key) for col, key in columns)
     echo.echo(" ".join("{:<{}}".format(col, w) for col, w, _ in cols))

tests/test_remote.py

@@ -76,7 +76,7 @@ def test_search_with_space_in_name(fixtures: Path):
     ]
 
     # Test the search
-    results = remote.search("lizmap",  strict=False)
+    results = remote.search("lizmap", strict=False)
     assert next(results)[0] == "Lizmap"
     assert next(results)[0] == "Lizmap server"