Human-readable filenames, skip if exists

ipascrape.py

@@ -18,8 +18,13 @@ def apps_from_folder(dirname):
             get_apps(os.path.join(dirname, "Store Transaction History - Free Apps.csv")))
 
 def fetch_app(app, outdir):
-    print(f"Downloading {app["Item Description"]}")
-    subprocess.run(["ipatool", "download", "--app-id", app["id"], "-o", outdir])
+    appname = app["Item Description"]
+    filename = os.path.join(outdir, f'{appname}.ipa')
+    if os.path.exists(filename):
+        print(f"{appname} exists, skipping")
+    else:
+        print(f"Downloading {appname}")
+        subprocess.run(["ipatool", "download", "--app-id", app["id"], "-o", filename])
 
 def main():
     parser = argparse.ArgumentParser(