Support exporting pythondata submissions (#9)

Support exporting pythondata submissions

---------

Co-authored-by: Davide Cazzin <28535750+NeverMendel@users.noreply.github.com>

Author: JoshuaGhost

leetcode_export/__main__.py

@@ -73,10 +73,10 @@ def parse_args():
         type=str,
         help="save submissions for specified programming languages.\n"
         "syntax: --language=<lang1>,<lang2>,...\n"
-        "languages: python, python3, c, cpp, csharp, java,\n"
-        "           kotlin, mysql, mssql, oraclesql, javascript,\n"
-        "           html, php, golang, scala, pythonml,\n"
-        "           rust, ruby, bash, swift\n"
+        "languages: python, python3, pythondata, c, cpp,\n"
+        "           csharp, java, kotlin, mysql, mssql,\n"
+        "           oraclesql, javascript, html, php, golang,\n"
+        "           scala, pythonml, rust, ruby, bash, swift\n"
         "example: --language=python,cpp,java",
     )
     parser.add_argument(

leetcode_export/utils.py

@@ -4,6 +4,7 @@
 VALID_PROGRAMMING_LANGUAGES = [
     "python",
     "python3",
+    "pythondata",
     "c",
     "cpp",
     "csharp",
@@ -27,6 +28,7 @@
 FILE_EXTENSIONS = {
     "python": "py",
     "python3": "py",
+    "pythondata": "pd.py",
     "c": "c",
     "cpp": "cpp",
     "csharp": "cs",