Damit pip das Paket pycurl installieren kann, müssen auf dem Debian-System folgende Pakete installiert sein:

# apt-get install libcurl4-openssl-dev libssl-dev

Quelle: “Could not run curl-config: [Errno 2] No such file or directory” when installing pycurl

Sonst liest man folgende Fehlermeldungen:

...
Collecting pycurl
Downloading https://files.pythonhosted.org/packages/e8/e4/0dbb8735407189f00b33d84122b9be52c790c7c3b25286826f4e1bdb7bde/pycurl-7.43.0.2.tar.gz (214kB)
100% |████████████████████████████████| 215kB 15.2MB/s 
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/tmp/pip-install-dv_5N3/pycurl/setup.py", line 913, in <module>
    ext = get_extension(sys.argv, split_extension_source=split_extension_source)
  File "/tmp/pip-install-dv_5N3/pycurl/setup.py", line 582, in get_extension
    ext_config = ExtensionConfiguration(argv)
  File "/tmp/pip-install-dv_5N3/pycurl/setup.py", line 99, in __init__
    self.configure()
  File "/tmp/pip-install-dv_5N3/pycurl/setup.py", line 227, in configure_unix
    raise ConfigurationError(msg)
__main__.ConfigurationError: Could not run curl-config: [Errno 2] No such file or directory