我尝试通过安装pip3 install pyicu并收到以下错误：
Collecting pyicu
Using cached https://files.pythonhosted.org/packages/bb/ef/3a7fcbba81bfd213e479131ae21445a2ddd14b46d70ef0109640b580bc5d/PyICU-2.0.3.tar.gz
Complete output from command python setup.py egg_info:
Building PyICU 2.0.3 for ICU 61
Could not configure CXXFLAGS with icu-config
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/private/var/folders/80/v1nwf70x2rz5srmzfnpc3pq40000gn/T/pip-build-b_sify1x/pyicu/setup.py", line 131, in <module>
_cflags, ('--cxxflags', '--cppflags'), 'CXXFLAGS')
File "/private/var/folders/80/v1nwf70x2rz5srmzfnpc3pq40000gn/T/pip-build-b_sify1x/pyicu/setup.py", line 30, in configure_with_icu_config
output = check_output(('icu-config',) + config_args).strip()
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/subprocess.py", line 336, in check_output
**kwargs).stdout
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/subprocess.py", line 403, in run
with Popen(*popenargs, **kwargs) as process:
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/subprocess.py", line 707, in __init__
restore_signals, start_new_session)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/subprocess.py", line 1326, in _execute_child
raise child_exception_type(errno_num, err_msg)
FileNotFoundError: [Errno 2] No such file or directory: 'icu-config'
----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/80/v1nwf70x2rz5srmzfnpc3pq40000gn/T/pip-build-b_sify1x/pyicu/
然后从某些来源我知道我需要为 icu安装icu4c和配置。.bash_profile也尝试过这样做，但错误仍然存在。请帮帮我。