Just ran in to this bug while trying to install streamlit to my Raspberry Pi 4. Basically, I can’t seem to get pyarrow installed. Installing streamlit==0.62.0 works as a workaround for now.
This is a problem with pyarrow on arm7l, not with streamlit, but here’s the relevant error messages from the log, which will help people that are googling.
  -- Could NOT find Arrow (missing: Arrow_DIR)
  -- Checking for module 'arrow'
  --   No package 'arrow' found
  CMake Error at /usr/share/cmake-3.13/Modules/FindPackageHandleStandardArgs.cmake:137 (message):
    Could NOT find Arrow (missing: ARROW_INCLUDE_DIR ARROW_LIB_DIR
    ARROW_FULL_SO_VERSION ARROW_SO_VERSION)
  Call Stack (most recent call first):
    /usr/share/cmake-3.13/Modules/FindPackageHandleStandardArgs.cmake:378 (_FPHSA_FAILURE_MESSAGE)
    cmake_modules/FindArrow.cmake:412 (find_package_handle_standard_args)
    cmake_modules/FindArrowPython.cmake:46 (find_package)
    CMakeLists.txt:210 (find_package)


  -- Configuring incomplete, errors occurred!
  See also "/tmp/pip-install-d22ajzwt/pyarrow/build/temp.linux-armv7l-3.7/CMakeFiles/CMakeOutput.log".
  error: command 'cmake' failed with exit status 1

  ----------------------------------------
  Failed building wheel for pyarrow

I tried using conda from @randyzwitch latest comment, but it doesn’t work:
$ conda install -c conda-forge pyarrow
Fetching package metadata: ........
Error: No packages found in current linux-armv7l channels matching: pyarrow

Did you mean one of these?

    arrow, pyrr

You can search for this package on anaconda.org with

    anaconda search -t conda pyarrow

You may need to install the anaconda-client command line client with

    conda install anaconda-client 

While googling around, I stumbled across https://issues.apache.org/jira/browse/ARROW-9791 17 which might be relevant.