[internal] Fallback für fehlendes typing Modul in Micropython hinzuge…

…fügt

Micropython bietet kein typing Modul (ist in Arbeit, siehe
micropython/micropython-lib#584). Stattdessen wird ein
Mock Type benutzt.

CUST-234

bec2format/__init__.py

@@ -1,3 +1,14 @@
+# Micropython does not provide a typing module, let's use a mock instead
+try:
+    import typing
+except ImportError:
+    import sys
+
+    from . import typing_mock
+
+    sys.modules["typing"] = typing_mock
+
+
 from .bec2file import (
     CONFIG_SECURITY_CODE_SIZE,
     Bec2File,

bec2format/typing_mock.py

@@ -0,0 +1,16 @@
+class _TypeMock:
+    def __getitem__(self, item):
+        return self
+
+    def __or__(self, other):
+        return self
+
+    def __ror__(self, other):
+        return self
+
+
+_typeMock = _TypeMock()
+
+
+def __getattr__(name):
+    return _typeMock

package.json

@@ -185,6 +185,10 @@
       "bec2format/bec2format/hwcids.py",
       "github:baltech-ag/bec2format/bec2format/hwcids.py"
     ],
+    [
+      "bec2format/bec2format/typing_mock.py",
+      "github:baltech-ag/bec2format/bec2format/typing_mock.py"
+    ],
     [
       "bec2format/bec2format/__init__.py",
       "github:baltech-ag/bec2format/bec2format/__init__.py"

tasks.py

@@ -30,8 +30,9 @@ def lint(ctx: Context, fix: bool = False) -> None:
         sys.exit(1)
 
 
-@task
+@task()
 def build_mip_package_json(ctx: Context) -> None:
+    """builds the package.json for micropython's package manager mip"""
     repo = "github:baltech-ag/bec2format"
     project_name, project_version = (
         ctx.run("poetry version", hide="out").stdout.strip().rsplit(" ", maxsplit=2)

tox.ini

@@ -8,6 +8,7 @@ description = Run invoke
 deps =
     invoke===2.0.0
     poetry==1.4.2
-commands_pre = python -m invoke install
+commands_pre =
+    python -m invoke install
 commands =
     python -m invoke {posargs}