freepic-1523588156147.jpg
问题描述：
使用 brew upgrade 升级软件，同时解决了python的问题：
【Mac】使用brew upgrade 升级 python 后的报错解决
httpie 使用时会显示如下问题：
http GET http://localhost:5000/prosrv/language/published
dyld: Library not loaded: @executable_path/../.Python
Referenced from: /usr/local/Cellar/httpie/0.9.9_3/libexec/bin/python3.6
Reason: image not found
[1] 12882 trace trap http --pretty all GET http://localhost:5000/prosrv/language/published
具体原因是 /usr/local/Cellar/httpie/0.9.9_3/libexec/bin/../.Python 目录无法找到。进入到目录：/usr/local/Cellar/httpie/0.9.9_3/libexec
$ cd /usr/local/Cellar/httpie/0.9.9_3/libexec
$ ls -al
total 16
drwxr-xr-x 7 long admin 238 12 9 2016 .
drwxr-xr-x 10 long admin 340 4 13 10:18 ..
lrwxr-xr-x 1 long admin 70 12 9 2016 .Python -> ../../../../opt/python/Frameworks/Python.framework/Versions/3.6/Python
drwxr-xr-x 18 long admin 612 4 13 10:18 bin
drwxr-xr-x 3 long admin 102 12 9 2016 include
drwxr-xr-x 3 long admin 102 12 9 2016 lib
-rw-r--r-- 1 long admin 60 12 9 2016 pip-selfcheck.json
可以看到 .Python 使用的是 /usr/local/opt/python 目录，由于：【Mac】使用brew upgrade 升级 python 后的报错解决 的原因，/usr/local/opt/python 已经由 python3 变为了Python2，因此 .Python 目录是不存在的。
解决办法
重新链接 .Python 目录：
$ cd /usr/local/Cellar/httpie/0.9.9_3/libexec
$ ln ../../../../opt/python3/Frameworks/Python.framework/Versions/3.6/Python .Python
$ ls -al
total 24
drwxr-xr-x 8 long admin 272B 4 13 10:46 .
drwxr-xr-x 10 long admin 340B 4 13 10:18 ..
lrwxr-xr-x 1 long admin 71B 4 13 10:46 .Python -> ../../../../opt/python3/Frameworks/Python.framework/Versions/3.6/Python
lrwxr-xr-x 1 long admin 70B 12 9 2016 .Python.bk -> ../../../../opt/python/Frameworks/Python.framework/Versions/3.6/Python
drwxr-xr-x 18 long admin 612B 4 13 10:18 bin
drwxr-xr-x 3 long admin 102B 12 9 2016 include
drwxr-xr-x 3 long admin 102B 12 9 2016 lib
-rw-r--r-- 1 long admin 60B 12 9 2016 pip-selfcheck.json
重新链接后，httpie 就可以正常使用了。
