From 70ed6d8797e7c4289ad1c55ed6659a567e1754d7 Mon Sep 17 00:00:00 2001
From: Kaoru Nishikawa <k.nishikawa@a.phys.nagoya-u.ac.jp>
Date: Thu, 12 May 2022 19:12:08 +0900
Subject: [PATCH] #1 Add version validation function

---
 src/python/main.py | 44 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 src/python/main.py

diff --git a/src/python/main.py b/src/python/main.py
new file mode 100644
index 0000000..bd7d559
--- /dev/null
+++ b/src/python/main.py
@@ -0,0 +1,44 @@
+def _import_dependencies():
+    from poetry.core.version import pep440
+    from poetry.core.version.exceptions import InvalidVersion
+    return pep440, InvalidVersion
+
+async def import_dependencies():
+    try:
+        return _import_dependencies()
+    except ImportError:
+        import micropip
+        await micropip.install(["poetry==1.2.0b1"])
+        return _import_dependencies()
+
+
+class PEP440:
+    def __init__(self):
+        pass
+
+    async def validate_version(self, version):
+        pep440, InvalidVersion = await import_dependencies()
+        try:
+            pep440.PEP440Version.parse(version)
+            return True
+        except InvalidVersion:
+            return False
+
+
+async def test_version(event):
+    version = Element("version-to-test").element.value
+    is_valid = await PEP440().validate_version(version)
+    pyscript.write(
+        "version-test-result",
+        f"{version} is" + (" " if is_valid else " not ") + "valid version",
+    )
+
+async def main():
+    _ = await import_dependencies()
+
+    from js import document
+    document.getElementById("loading").style.display = "none"
+
+import asyncio
+loop = asyncio.get_event_loop()
+_ = loop.run_until_complete(main())
\ No newline at end of file