Default version string now follows PEP440.

PiperOrigin-RevId: 506821261
Change-Id: I11520c7392e50900ed2d54b1ad55f0e830c8c889

Author: ssjhv

README.md

@@ -269,8 +269,7 @@ sudo docker run -i --rm -v /tmp/tensorflow_compression:/tmp/tensorflow_compressi
      cd /tensorflow_compression &&
      python -m pip install -U pip setuptools wheel &&
      python -m pip install -r requirements.txt &&
-     bazel build -c opt --copt=-mavx [email protected]_manylinux2014-cuda11.2-cudnn8.1-tensorrt7.2_config_cuda//crosstool:toolchain :build_pip_pkg
-     python build_pip_pkg.py bazel-bin/build_pip_pkg.runfiles/tensorflow_compression /tmp/tensorflow_compression custom_version"
+     bazel run -c opt --copt=-mavx [email protected]_manylinux2014-cuda11.2-cudnn8.1-tensorrt7.2_config_cuda//crosstool:toolchain :build_pip_pkg -- . /tmp/tensorflow_compression <custom-version>"
 ```
 
 For Darwin, the Docker image and specifying the toolchain is not necessary. We
@@ -282,8 +281,7 @@ git clone https://github.com/tensorflow/compression.git /tensorflow_compression
 cd /tensorflow_compression
 python -m pip install -U pip setuptools wheel
 python -m pip install -r requirements.txt
-bazel build -c opt --copt=-mavx --macos_minimum_os=10.14 :build_pip_pkg
-python build_pip_pkg.py bazel-bin/build_pip_pkg.runfiles/tensorflow_compression /tmp/tensorflow_compression custom_version"
+bazel run -c opt --copt=-mavx --macos_minimum_os=10.14 :build_pip_pkg -- . /tmp/tensorflow_compression <custom-version>"
 ```
 
 In both cases, the wheel file is created inside `/tmp/tensorflow_compression`.

build_pip_pkg.py

@@ -22,9 +22,8 @@
 import tempfile
 import setuptools
 
-# Version string is intentionally set to non-numeric value, so that non-release
-# built packages are different from release packages.
-DEFAULT_VERSION = "custom-build-from-source"
+# Version string should follow PEP440 rules.
+DEFAULT_VERSION = "0.dev0+build-from-source"
 
 
 class BinaryDistribution(setuptools.Distribution):
@@ -101,5 +100,5 @@ def main(srcdir: str, destdir: str, version: str = ""):
 
 
 if __name__ == "__main__":
-  main(*sys.argv[1:])  # pylint: disable=no-value-for-parameter
+  main(*sys.argv[1:])  # pylint: disable=too-many-function-args