TLJH Installation failure

Hi,
While trying to install Littlest JupyterHub on my own server running Ubuntu 18.04, I get the following error:

Setting up JupyterHub…
Ran /opt/tljh/hub/bin/python -m pip install --no-cache-dir pycurl==7.43.* with exit code 1
Collecting pycurl==7.43.*
Downloading https ://files.pythonhosted.org/packages/ac/b3/0f3979633b7890bab6098d84c84467030b807a1e2b31f5d30103af5a71ca/pycurl-7.43.0.3.tar.gz (215kB)
Installing collected packages: pycurl
Running setup.py install for pycurl: started
Running setup.py install for pycurl: finished with status ‘error’
Complete output from command /opt/tljh/hub/bin/python -u -c “import setuptools, tokenize;file=’/tmp/pip-build-mbi_q9aa/pycurl/setup.py’;f=getattr(tokenize, ‘open’, open)(file);code=f.read().replace(’\r\n’, ‘\n’);f.close();exec(compile(code, file, ‘exec’))” install --record /tmp/pip-zrww2ae0-record/install-record.txt --single-version-externally-managed --compile --install-headers /opt/tljh/hub/include/site/python3.6/pycurl:
Using curl-config (libcurl 7.58.0)
Using SSL library: OpenSSL/LibreSSL/BoringSSL
running install
running build
running build_py
creating build
creating build/lib.linux-x86_64-3.6
creating build/lib.linux-x86_64-3.6/curl
copying python/curl/init.py -> build/lib.linux-x86_64-3.6/curl
running build_ext
building ‘pycurl’ extension
creating build/temp.linux-x86_64-3.6
creating build/temp.linux-x86_64-3.6/src
x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DPYCURL_VERSION=“7.43.0.3” -DHAVE_CURL_SSL=1 -DHAVE_CURL_OPENSSL=1 -DHAVE_CURL_SSL=1 -I/opt/tljh/hub/include -I/usr/include/python3.6m -c src/docstrings.c -o build/temp.linux-x86_64-3.6/src/docstrings.o
In file included from src/docstrings.c:4:0:
src/pycurl.h:4:10: fatal error: Python.h: No such file or directory
#include <Python.h>
^~~~~~~~~~
compilation terminated.
error: command ‘x86_64-linux-gnu-gcc’ failed with exit status 1 ----------------------------------------
Command “/opt/tljh/hub/bin/python -u -c “import setuptools, tokenize;file=’/tmp/pip-build-mbi_q9aa/pycurl/setup.py’;f=getattr(tokenize, ‘open’, open)(file);code=f.read().replace(’\r\n’, ‘\n’);f.close();exec(compile(code, file, ‘exec’))” install --record /tmp/pip-zrww2ae0-record/install-record.txt --single-version-externally-managed --compile --install-headers /opt/tljh/hub/include/site/python3.6/pycurl” failed with error code 1 in /tmp/pip-build-mbi_q9aa/pycurl/
Traceback (most recent call last):
File “/usr/lib/python3.6/runpy.py”, line 193, in _run_module_as_main
main”, mod_spec)
File “/usr/lib/python3.6/runpy.py”, line 85, in _run_code
exec(code, run_globals)
File “/opt/tljh/hub/lib/python3.6/site-packages/tljh/installer.py”, line 482, in
main()
File “/opt/tljh/hub/lib/python3.6/site-packages/tljh/installer.py”, line 469, in main
ensure_jupyterhub_package(HUB_ENV_PREFIX)
File “/opt/tljh/hub/lib/python3.6/site-packages/tljh/installer.py”, line 201, in ensure_jupyterhub_package
‘pycurl==7.43.
File “/opt/tljh/hub/lib/python3.6/site-packages/tljh/conda.py”, line 135, in ensure_pip_packages
] + packages)
File “/opt/tljh/hub/lib/python3.6/site-packages/tljh/utils.py”, line 28, in run_subprocess
raise subprocess.CalledProcessError(cmd=cmd, returncode=proc.returncode)
subprocess.CalledProcessError: Command ‘[’/opt/tljh/hub/bin/python’, ‘-m’, ‘pip’, ‘install’, ‘–no-cache-dir’, 'pycurl==7.43.
’]’ returned non-zero exit status 1.

It is worth mentioning that I have managed to install littlest jupyterhub on identical setup (ubuntu 18.04) two months back and it is still working today.
Issues #444 and #450 created on github seem similar to my untrained eye.
Thanks for help!