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readme: update Python instructions (fixes #426)

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matejcik 2018-11-06 16:44:32 +01:00
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@ -58,17 +58,17 @@ Step 3 should produce the same sha256 fingerprint like your local build (for the
If you want to build device firmware, make sure you have the If you want to build device firmware, make sure you have the
[GNU ARM Embedded toolchain](https://developer.arm.com/open-source/gnu-toolchain/gnu-rm/downloads) installed. [GNU ARM Embedded toolchain](https://developer.arm.com/open-source/gnu-toolchain/gnu-rm/downloads) installed.
You will also need Python 3.5 or later and [pipenv](https://pipenv.readthedocs.io/en/latest/install/).
* If you want to build the emulator instead of the firmware, run `export EMULATOR=1 TREZOR_TRANSPORT_V1=1` * If you want to build the emulator instead of the firmware, run `export EMULATOR=1 TREZOR_TRANSPORT_V1=1`
* If you want to build with the debug link, run `export DEBUG_LINK=1`. Use this if you want to run the device tests. * If you want to build with the debug link, run `export DEBUG_LINK=1`. Use this if you want to run the device tests.
* When you change these variables, use `script/setup` to clean the repository * When you change these variables, use `script/setup` to clean the repository
1. To initialize the repository, run `script/setup` 1. To initialize the repository, run `script/setup`
2. To build the firmware or emulator, run `script/cibuild` 2. To initialize a Python environment, run `pipenv install`
3. To build the firmware or emulator, run `pipenv run script/cibuild`
If you are building device firmware, the firmware will be in `firmware/trezor.bin`. If you are building device firmware, the firmware will be in `firmware/trezor.bin`.
You can launch the emulator using `firmware/trezor.elf`. To use `trezorctl` with the emulator, use You can launch the emulator using `firmware/trezor.elf`. To use `trezorctl` with the emulator, use
`trezorctl -t udp` (for example, `trezorctl -t udp get_features`). `trezorctl -p udp` (for example, `trezorctl -p udp get_features`).
If `trezorctl -t udp` appears to hang, make sure you have run `export TREZOR_TRANSPORT_V1=1`.