os-path: Implement os.path.isfile().

scivision · dpgeorge · commit ae8ea8d11395 · 2023-12-20T14:46:57.000+11:00
Signed-off-by: Michael Hirsch &lt;michael@scivision.dev&gt;
diff --git a/python-stdlib/os-path/manifest.py b/python-stdlib/os-path/manifest.py
@@ -1,4 +1,4 @@
-metadata(version="0.1.4")
+metadata(version="0.2.0")
 
 # Originally written by Paul Sokolovsky.
 
diff --git a/python-stdlib/os-path/os/path.py b/python-stdlib/os-path/os/path.py
@@ -66,6 +66,13 @@ def isdir(path):
         return False
 
 
+def isfile(path):
+    try:
+        return bool(os.stat(path)[0] & 0x8000)
+    except OSError:
+        return False
+
+
 def expanduser(s):
     if s == "~" or s.startswith("~/"):
         h = os.getenv("HOME")
diff --git a/python-stdlib/os-path/test_path.py b/python-stdlib/os-path/test_path.py
@@ -20,3 +20,7 @@
 assert isdir(dir + "/os")
 assert not isdir(dir + "/os--")
 assert not isdir(dir + "/test_path.py")
+
+assert not isfile(dir + "/os")
+assert isfile(dir + "/test_path.py")
+assert not isfile(dir + "/test_path.py--")

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-metadata(version="0.1.4")`
	`1`	`+metadata(version="0.2.0")`
`2`	`2`
`3`	`3`	`# Originally written by Paul Sokolovsky.`
`4`	`4`