Replace some usages of py.path.local

extra/get_issues.py

@@ -1,6 +1,6 @@
 import json
+from pathlib import Path
 
-import py
 import requests
 
 issues_url = "https://api.github.com/repos/pytest-dev/pytest/issues"
@@ -31,12 +31,12 @@ def get_issues():
 
 
 def main(args):
-    cachefile = py.path.local(args.cache)
+    cachefile = Path(args.cache)
     if not cachefile.exists() or args.refresh:
         issues = get_issues()
-        cachefile.write(json.dumps(issues))
+        cachefile.write_text(json.dumps(issues), "utf-8")
     else:
-        issues = json.loads(cachefile.read())
+        issues = json.loads(cachefile.read_text("utf-8"))
 
     open_issues = [x for x in issues if x["state"] == "open"]