stepan@stepan-MS-7519:~$ pip install pycurl lxml
Collecting pycurl
  Using cached pycurl-7.43.0.tar.gz
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-build-Mnewxr/pycurl/setup.py", line 823, in <module>
        ext = get_extension(sys.argv, split_extension_source=split_extension_source)
      File "/tmp/pip-build-Mnewxr/pycurl/setup.py", line 497, in get_extension
        ext_config = ExtensionConfiguration(argv)
      File "/tmp/pip-build-Mnewxr/pycurl/setup.py", line 71, in __init__
        self.configure()
      File "/tmp/pip-build-Mnewxr/pycurl/setup.py", line 107, in configure_unix
        raise ConfigurationError(msg)
    __main__.ConfigurationError: Could not run curl-config: [Errno 2] No such file or directory
    
    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-Mnewxr/pycurl/

 stepan@stepan-MS-7519:~$ pip install grab
Collecting grab
  Using cached grab-0.6.30.tar.gz
Collecting lxml (from grab)
  Using cached lxml-3.6.4-cp27-cp27mu-manylinux1_x86_64.whl
Collecting pycurl (from grab)
  Using cached pycurl-7.43.0.tar.gz
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-build-ckdy6M/pycurl/setup.py", line 823, in <module>
        ext = get_extension(sys.argv, split_extension_source=split_extension_source)
      File "/tmp/pip-build-ckdy6M/pycurl/setup.py", line 497, in get_extension
        ext_config = ExtensionConfiguration(argv)
      File "/tmp/pip-build-ckdy6M/pycurl/setup.py", line 71, in __init__
        self.configure()
      File "/tmp/pip-build-ckdy6M/pycurl/setup.py", line 107, in configure_unix
        raise ConfigurationError(msg)
    __main__.ConfigurationError: Could not run curl-config: [Errno 2] No such file or directory
    
    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-ckdy6M/pycurl/