diff --git a/fsspec/core.py b/fsspec/core.py
index e79f2a894..e44fbe98e 100644
--- a/fsspec/core.py
+++ b/fsspec/core.py
@@ -673,9 +673,7 @@ def get_fs_token_paths(
         elif not isinstance(paths, list):
             paths = list(paths)
     else:
-        if "w" in mode and expand:
-            paths = _expand_paths(paths, name_function, num)
-        elif "x" in mode and expand:
+        if ("w" in mode or "x" in mode) and expand:
             paths = _expand_paths(paths, name_function, num)
         elif "*" in paths:
             paths = [f for f in sorted(fs.glob(paths)) if not fs.isdir(f)]
diff --git a/fsspec/implementations/cached.py b/fsspec/implementations/cached.py
index 447e4f267..8b8b83295 100644
--- a/fsspec/implementations/cached.py
+++ b/fsspec/implementations/cached.py
@@ -612,7 +612,7 @@ def cat(
         **kwargs,
     ):
         paths = self.expand_path(
-            path, recursive=recursive, maxdepth=kwargs.get("maxdepth", None)
+            path, recursive=recursive, maxdepth=kwargs.get("maxdepth")
         )
         getpaths = []
         storepaths = []
diff --git a/fsspec/implementations/ftp.py b/fsspec/implementations/ftp.py
index f3471b996..4186b6ce3 100644
--- a/fsspec/implementations/ftp.py
+++ b/fsspec/implementations/ftp.py
@@ -387,7 +387,7 @@ def _mlsd2(ftp, path="."):
                 "size": split_line[4],
             },
         )
-        if "d" == this[1]["unix.mode"][0]:
+        if this[1]["unix.mode"][0] == "d":
             this[1]["type"] = "dir"
         else:
             this[1]["type"] = "file"
diff --git a/fsspec/implementations/tests/test_local.py b/fsspec/implementations/tests/test_local.py
index ef3927912..15cd75468 100644
--- a/fsspec/implementations/tests/test_local.py
+++ b/fsspec/implementations/tests/test_local.py
@@ -247,7 +247,7 @@ def test_not_found():
 def test_isfile():
     fs = LocalFileSystem()
     with filetexts(files, mode="b"):
-        for f in files.keys():
+        for f in files:
             assert fs.isfile(f)
             assert fs.isfile(f"file://{f}")
         assert not fs.isfile("not-a-file")
@@ -257,7 +257,7 @@ def test_isfile():
 def test_isdir():
     fs = LocalFileSystem()
     with filetexts(files, mode="b"):
-        for f in files.keys():
+        for f in files:
             assert fs.isdir(os.path.dirname(os.path.abspath(f)))
             assert not fs.isdir(f)
         assert not fs.isdir("not-a-dir")
diff --git a/fsspec/implementations/tests/test_zip.py b/fsspec/implementations/tests/test_zip.py
index 14d00086e..814273761 100644
--- a/fsspec/implementations/tests/test_zip.py
+++ b/fsspec/implementations/tests/test_zip.py
@@ -162,7 +162,7 @@ def zip_file_fixture(tmp_path):
 
 
 def _assert_all_except_context_dependent_variables(result, expected_result):
-    for path in expected_result.keys():
+    for path in expected_result:
         assert result[path]
         fields = [
             "orig_filename",
diff --git a/fsspec/parquet.py b/fsspec/parquet.py
index 5a0fb951c..faedb7b9e 100644
--- a/fsspec/parquet.py
+++ b/fsspec/parquet.py
@@ -336,7 +336,7 @@ def _add_header_magic(data):
     # Add b"PAR1" to file headers
     for path in list(data.keys()):
         add_magic = True
-        for k in data[path].keys():
+        for k in data[path]:
             if k[0] == 0 and k[1] >= 4:
                 add_magic = False
                 break
diff --git a/fsspec/tests/test_parquet.py b/fsspec/tests/test_parquet.py
index 5f38db7c6..7a764142d 100644
--- a/fsspec/tests/test_parquet.py
+++ b/fsspec/tests/test_parquet.py
@@ -91,7 +91,7 @@ def test_open_parquet_file(
             # the footer metadata, so there should NOT
             # be a key for the last 8 bytes of the file
             bad_key = (file_size - 8, file_size)
-            assert bad_key not in data.keys()
+            assert bad_key not in data
 
         for (start, stop), byte_data in data.items():
             f.seek(start)
diff --git a/pyproject.toml b/pyproject.toml
index 48368711f..d68123444 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -180,8 +180,8 @@ select = [
     "RUF006",
     "RUF015",
     "RUF024",
+    "SIM",
     "SLOT",
-    "SIM101",
 ]
 ignore = [
 	# Loop control variable `loop` not used within loop body
@@ -206,6 +206,12 @@ ignore = [
     # Fix these codes later
     "G004",
     "PERF203",
+    "SIM102",
+    "SIM105",
+    "SIM108",
+    "SIM114",
+    "SIM115",
+    "SIM117",
     # https://github.com/astral-sh/ruff/issues/7871
     "UP038",
     # https://docs.astral.sh/ruff/formatter/#conflicting-lint-rules