From bda1fa9912c2fb02908658c616a9fd5ee16942b1 Mon Sep 17 00:00:00 2001
From: matejcik <ja@matejcik.cz>
Date: Thu, 18 Nov 2021 12:31:58 +0100
Subject: [PATCH] build(core): exclude all "from typing" imports from build

---
 core/site_scons/site_tools/micropython/__init__.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/core/site_scons/site_tools/micropython/__init__.py b/core/site_scons/site_tools/micropython/__init__.py
index 9fd37183c..38c40880f 100644
--- a/core/site_scons/site_tools/micropython/__init__.py
+++ b/core/site_scons/site_tools/micropython/__init__.py
@@ -28,8 +28,11 @@ def generate(env):
         btc_only = env['bitcoin_only'] == '1'
         interim = f"{target[:-4]}.i"  # replace .mpy with .i
         sed_scripts = " ".join([
-            f"-e 's/utils\.BITCOIN_ONLY/{btc_only}/g'",
-            "-e 's/if TYPE_CHECKING/if False/'",
+            rf"-e 's/utils\.BITCOIN_ONLY/{btc_only}/g'",
+            r"-e 's/if TYPE_CHECKING/if False/'",
+            r"-e 's/import typing/# \0/'",
+            r"-e '/from typing import (/,/^\s*)/ {s/^/# /}'",
+            r"-e 's/from typing import/# \0/'"
         ])
         return f'$SED {sed_scripts} {source} > {interim} && $MPY_CROSS -o {target} -s {source_name} {interim}'