Error installing requirements

[ajnachakra]

`$ pip install -r requirements.txt
Collecting argparse (from -r requirements.txt (line 1))
Downloading argparse-1.4.0-py2.py3-none-any.whl
Collecting requests (from -r requirements.txt (line 2))
Downloading requests-2.18.4-py2.py3-none-any.whl (88kB)
100% |████████████████████████████████| 92kB 1.1MB/s
Collecting dnspython (from -r requirements.txt (line 3))
Downloading dnspython-1.15.0-py2.py3-none-any.whl (177kB)
100% |████████████████████████████████| 184kB 1.8MB/s
Collecting dnslib (from -r requirements.txt (line 4))
Downloading dnslib-0.9.7.tar.gz (60kB)
100% |████████████████████████████████| 61kB 2.6MB/s
Collecting netaddr (from -r requirements.txt (line 5))
Downloading netaddr-0.7.19-py2.py3-none-any.whl (1.6MB)
100% |████████████████████████████████| 1.6MB 555kB/s
Collecting sqlite3 (from -r requirements.txt (line 6))
Downloading sqlite3-99.0.tar.gz
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "", line 1, in
File "/private/var/folders/xf/j6d7cpsn4qq7rht_ydj1r2zr001118/T/pip-build-6JTwrA/sqlite3/setup.py", line 2, in
raise RuntimeError("Package 'sqlite3' must not be downloaded from pypi")
RuntimeError: Package 'sqlite3' must not be downloaded from pypi

----------------------------------------

Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/xf/j6d7cpsn4qq7rht_ydj1r2zr001118/T/pip-build-6JTwrA/sqlite3/
`

Environment:
$ pip -V pip 9.0.1 from /Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg (python 2.7)
$ python -V Python 2.7.10
OS X Sierra 10.12.6

[d0t1q]

sqlite's install should be done via the install_deps.sh file

[pmzhou]

pip install -r requirements.txt generates an error "Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-UML8dA/sqlite3/"