getting an error msg while installing kite api

rajukumarpu9

Hi Team,

I'm trying to install kite python api on ubuntu machine.

I have also updated python to 3.7.3. I'm following below link fro installation.
https://github.com/zerodhatech/pykiteconnect/tree/kite3

but I'm getting below error msg .

I have observed that when I run the same command for second time, didn't get the error msg again .

Requirement already satisfied, skipping upgrade: asn1crypto>=0.21.0 in /usr/lib/python3/dist-packages (from cryptography>=2.7->autobahn[twisted]>=17.10.1->kiteconnect) (0.24.0)
Collecting pycparser (from cffi!=1.11.3,>=1.8->cryptography>=2.7->autobahn[twisted]>=17.10.1->kiteconnect)
Building wheels for collected packages: kiteconnect
Building wheel for kiteconnect (setup.py) ... done
WARNING: Legacy build of wheel for 'kiteconnect' created no files.
Command arguments: /usr/bin/python3 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-pubj4km6/kiteconnect/setup.py'"'"'; __file__='"'"'/tmp/pip-install-pubj4km6/kiteconnect/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-16rlse56 --python-tag cp37
Command output: [use --verbose to show]
Running setup.py clean for kiteconnect
Failed to build kiteconnect
Installing collected packages: enum34, python-dateutil, pycparser, cffi, cryptography, txaio, autobahn, kiteconnect
Found existing installation: cryptography 2.1.4
Uninstalling cryptography-2.1.4:
Successfully uninstalled cryptography-2.1.4
Running setup.py install for kiteconnect ... done