when I run the install.sh,have error

[yhl5555]

Collecting demjson
Using cached demjson-2.2.4.tar.gz (131 kB)
Collecting Flask
Using cached Flask-1.1.1-py2.py3-none-any.whl (94 kB)
Collecting pycurl
Using cached pycurl-7.43.0.5.tar.gz (216 kB)
ERROR: Command errored out with exit status 1:
command: /usr/bin/python -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-FWn3Og/pycurl/setup.py'"'"'; file='"'"'/tmp/pip-install-FWn3Og/pycurl/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-install-FWn3Og/pycurl/pip-egg-info
cwd: /tmp/pip-install-FWn3Og/pycurl/
Complete output (11 lines):
Traceback (most recent call last):
File "", line 1, in
File "/tmp/pip-install-FWn3Og/pycurl/setup.py", line 961, in
ext = get_extension(sys.argv, split_extension_source=split_extension_source)
File "/tmp/pip-install-FWn3Og/pycurl/setup.py", line 623, in get_extension
ext_config = ExtensionConfiguration(argv)
File "/tmp/pip-install-FWn3Og/pycurl/setup.py", line 101, in init
self.configure()
File "/tmp/pip-install-FWn3Og/pycurl/setup.py", line 238, in configure_unix
raise ConfigurationError(msg)
main.ConfigurationError: Could not run curl-config: [Errno 2] No such file or directory
----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

[LevyHsu]

Try manually install pycurl and check the integrity of your pip