venv for Python setup (#653)

* Python uses venv

* Small fixes to python calls

.gitignore

@@ -1,5 +1,7 @@
 libraries/**/Cargo.lock
 target/
+/build/
+/py_virtual_env/
 
 # Local installation of elf2tab.
 /elf2tab/

deploy.py

@@ -1,5 +1,5 @@
-#!/usr/bin/env python3
-# Copyright 2019 Google LLC
+#!py_virtual_env/bin/python3
+# Copyright 2019-2023 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.

docs/boards/nrf52840_mdk.md

@@ -19,7 +19,7 @@ After general setup, you still need these steps:
 1.  Run the script:
 
     ```shell
-    python3 uf2conv.py -c -f 0xada52840 -o target/opensk.uf2 target/nrf52840_mdk_dfu_merged.hex
+    py_virtual_env/bin/python3 uf2conv.py -c -f 0xada52840 -o target/opensk.uf2 target/nrf52840_mdk_dfu_merged.hex
     ```
 
 1.  Boot into DFU mode. Keep the user button pressed on your hardware while

docs/boards/nrf52840dk.md

@@ -64,10 +64,10 @@ Afterwards, you can upgrade the other partition with
 ```shell
 # Board A -> B
 ./deploy.py --board=nrf52840dk_opensk_b --opensk --programmer=none --version=1
-python3 -m tools.deploy_partition --board=nrf52840dk_opensk_b --version=1
+py_virtual_env/bin/python3 -m tools.deploy_partition --board=nrf52840dk_opensk_b --version=1
 # Board B -> A
 ./deploy.py --board=nrf52840dk_opensk_a --opensk --programmer=none --version=1
-python3 -m tools.deploy_partition --board=nrf52840dk_opensk_a --version=1
+py_virtual_env/bin/python3 -m tools.deploy_partition --board=nrf52840dk_opensk_a --version=1
 ```
 
 respectively. You can only upgrade the partition that is not currently running,
@@ -81,5 +81,5 @@ for example:
 ```shell
 ./deploy.py --board=nrf52840dk_opensk_a --opensk --version=0 --vendor-hid
 ./deploy.py --board=nrf52840dk_opensk_b --opensk --programmer=none --version=1 --vendor-hid
-python3 -m tools.deploy_partition --board=nrf52840dk_opensk_b --version=1 --vendor-hid
+py_virtual_env/bin/python3 -m tools.deploy_partition --board=nrf52840dk_opensk_b --version=1 --vendor-hid
 ```

requirements.txt

@@ -8,3 +8,7 @@ colorama
 tqdm
 cryptography
 fido2 >= 1.0.0
+
+# Tests
+pylint
+hid

setup.sh

@@ -16,6 +16,8 @@
 # Ensure the script doesn't fail on Github workflows
 export TERM=${TERM:-vt100}
 done_text="$(tput bold)DONE.$(tput sgr0)"
+PY_VENV_NAME=py_virtual_env
+PIP="$PY_VENV_NAME"/bin/pip
 
 set -e
 
@@ -31,7 +33,8 @@ check_command () {
   fi
 }
 check_command rustup " Follow the steps under https://rustup.rs/ to install it."
-check_command pip3
+python3 -m venv "$PY_VENV_NAME"
+check_command "$PIP"
 
 # Ensure we have certificates, keys, etc. so that the tests can run
 source tools/gen_key_materials.sh
@@ -40,7 +43,7 @@ generate_crypto_materials N
 rustup show
 # Nightly is used for testing and fuzzing libraries
 rustup install nightly 
-pip3 install --upgrade -r requirements.txt
+"$PIP" install --upgrade -r requirements.txt
 
 # Install dependency to create applications.
 mkdir -p elf2tab

tools/authenticator_config.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python3
 # Copyright 2023 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");

tools/configure.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python3
+#!py_virtual_env/bin/python3
 # Copyright 2020 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");

tools/deploy_partition.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python3
 # Copyright 2020-2021 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");

tools/run_pylint.sh

@@ -16,4 +16,6 @@
 # Ensure we are at the project root directory
 cd $(readlink -f $(dirname $0))/..
 
+export PATH="py_virtual_env/bin:$PATH"
+
 pylint --score=n `git ls-files --deduplicate --exclude-standard --full-name '*.py'`

tools/vendor_hid_test.py

@@ -1,3 +1,16 @@
+# Copyright 2021-2023 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 """These tests verify the functionality of the VendorHID interface."""
 import fido2
 from fido2 import ctap