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Xuehai Pan a229b4526f [BE] Prefer dash over underscore in command-line options (#94505) 
Preferring dash over underscore in command-line options. Add `--command-arg-name` to the argument parser. The old arguments with underscores `--command_arg_name` are kept for backward compatibility.

Both dashes and underscores are used in the PyTorch codebase. Some argument parsers only have dashes or only have underscores in arguments. For example, the `torchrun` utility for distributed training only accepts underscore arguments (e.g., `--master_port`). The dashes are more common in other command-line tools. And it looks to be the default choice in the Python standard library:

`argparse.BooleanOptionalAction`: 4a9dff0e5a/Lib/argparse.py (L893-L895)

```python
class BooleanOptionalAction(Action):
    def __init__(...):
            if option_string.startswith('--'):
                option_string = '--no-' + option_string[2:]
                _option_strings.append(option_string)
```

It adds `--no-argname`, not `--no_argname`. Also typing `_` need to press the shift or the caps-lock key than `-`.

Pull Request resolved: https://github.com/pytorch/pytorch/pull/94505
Approved by: https://github.com/ezyang, https://github.com/seemethere
2023-02-09 20:16:49 +00:00
..
analysis Add helpers for running tests and then putting them in a CSV (#92642) 2023-01-22 02:00:39 +00:00
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release_notes [BE] Prefer dash over underscore in command-line options (#94505) 2023-02-09 20:16:49 +00:00
add_apache_header.sh
apache_header.txt
apache_python.txt
buck_setup.sh
build_android.sh [Vulkan] Remove GLSL Code Gen (#91912) 2023-01-10 20:29:47 +00:00
build_host_protoc.sh
build_ios.sh
build_local.sh
build_mobile.sh
build_pytorch_android.sh
build_raspbian.sh
build_tegra_x1.sh
build_tizen.sh
build_windows.bat
diagnose_protobuf.py
get_python_cmake_flags.py
proto.ps1
read_conda_versions.sh
README.md
remove_apache_header.sh
temp.sh
xcode_build.rb

README.md

This directory contains the useful tools.

build_android.sh

This script is to build PyTorch/Caffe2 library for Android. Take the following steps to start the build:

  • set ANDROID_NDK to the location of ndk
export ANDROID_NDK=YOUR_NDK_PATH
  • run build_android.sh
#in your PyTorch root directory
bash scripts/build_android.sh

If succeeded, the libraries and headers would be generated to build_android/install directory. You can then copy these files from build_android/install to your Android project for further usage.

You can also override the cmake flags via command line, e.g., following command will also compile the executable binary files:

bash scripts/build_android.sh -DBUILD_BINARY=ON

build_ios.sh

This script is to build PyTorch/Caffe2 library for iOS, and can only be performed on macOS. Take the following steps to start the build:

  • Install Xcode from App Store, and configure "Command Line Tools" properly on Xcode.
  • Install the dependencies:
brew install cmake automake libtool
  • run build_ios.sh
#in your PyTorch root directory
bash scripts/build_ios.sh

If succeeded, the libraries and headers would be generated to build_ios/install directory. You can then copy these files to your Xcode project for further usage.