Prefer tuples over explicit lists

Tuples offer better memory usage compared to lists due to Python's
ability to optimize with immutability. While these small amount of
changes won't shave off much, the plan is to find more of these which
will arithmetically have significance to the codebase.

Signed-off-by: Kenneth Raplee <kenrap@kennethraplee.com>
Signed-off-by: Sam James <sam@gentoo.org>

3 files changed, 11 insertions, 11 deletions

diff --git a/lib/portage/const.py b/lib/portage/const.py
index 98eb7e4f2..f0f57067a 100644
--- a/lib/portage/const.py
+++ b/lib/portage/const.py
@@ -125,7 +125,7 @@ EBUILD_PHASES = (
     "other",
 )
 SUPPORTED_FEATURES = frozenset(
-    [
+    (
         "assume-digests",
         "binpkg-docompress",
         "binpkg-dostrip",
@@ -217,14 +217,14 @@ SUPPORTED_FEATURES = frozenset(
         "usersync",
         "webrsync-gpg",
         "xattr",
-    ]
+    )
 )
 
 EAPI = 8
 
 HASHING_BLOCKSIZE = 32768
 
-MANIFEST2_HASH_DEFAULTS = frozenset(["BLAKE2B", "SHA512"])
+MANIFEST2_HASH_DEFAULTS = frozenset(("BLAKE2B", "SHA512"))
 MANIFEST2_HASH_DEFAULT = "BLAKE2B"
 
 MANIFEST2_IDENTIFIERS = ("AUX", "MISC", "DIST", "EBUILD")
@@ -248,7 +248,7 @@ VCS_DIRS = ("CVS", "RCS", "SCCS", ".bzr", ".git", ".hg", ".svn")
 
 # List of known live eclasses. Keep it in sync with cnf/sets/portage.conf
 LIVE_ECLASSES = frozenset(
-    [
+    (
         "bzr",
         "cvs",
         "darcs",
@@ -257,7 +257,7 @@ LIVE_ECLASSES = frozenset(
         "golang-vcs",
         "mercurial",
         "subversion",
-    ]
+    )
 )
 
 SUPPORTED_BINPKG_FORMATS = ("tar", "rpm")
diff --git a/lib/portage/data.py b/lib/portage/data.py
index 8c58ad0fc..de7d88e5e 100644
--- a/lib/portage/data.py
+++ b/lib/portage/data.py
@@ -83,12 +83,12 @@ def _target_root():
 
 def portage_group_warning():
     warn_prefix = colorize("BAD", "*** WARNING ***  ")
-    mylines = [
+    mylines = (
         "For security reasons, only system administrators should be",
         "allowed in the portage group.  Untrusted users or processes",
         "can potentially exploit the portage group for attacks such as",
         "local privilege escalation.",
-    ]
+    )
     for x in mylines:
         writemsg(warn_prefix, noiselevel=-1)
         writemsg(x, noiselevel=-1)
diff --git a/lib/portage/glsa.py b/lib/portage/glsa.py
index 4b92d52e0..1b68bc0e9 100644
--- a/lib/portage/glsa.py
+++ b/lib/portage/glsa.py
@@ -152,7 +152,7 @@ def getListElements(listnode):
     @rtype:		List of Strings
     @return:	a list that contains the value of the <li> elements
     """
-    if not listnode.nodeName in ["ul", "ol"]:
+    if not listnode.nodeName in ("ul", "ol"):
         raise GlsaFormatException("Invalid function call: listnode is not <ul> or <ol>")
     rValue = [
         getText(li, format="strip")
@@ -191,8 +191,8 @@ def getText(node, format, textfd=None):  # pylint: disable=redefined-builtin
         returnNone = False
     else:
         returnNone = True
-    if format in ["strip", "keep"]:
-        if node.nodeName in ["uri", "mail"]:
+    if format in ("strip", "keep"):
+        if node.nodeName in ("uri", "mail"):
             textfd.write(f"{node.childNodes[0].data}:{node.getAttribute('link')}")
         else:
             for subnode in node.childNodes:
@@ -206,7 +206,7 @@ def getText(node, format, textfd=None):  # pylint: disable=redefined-builtin
                 for p_subnode in subnode.childNodes:
                     if p_subnode.nodeName == "#text":
                         textfd.write(p_subnode.data.strip())
-                    elif p_subnode.nodeName in ["uri", "mail"]:
+                    elif p_subnode.nodeName in ("uri", "mail"):
                         textfd.write(p_subnode.childNodes[0].data)
                         textfd.write(" ( " + p_subnode.getAttribute("link") + " )")
                 textfd.write(NEWLINE_ESCAPE)