requirements.txt

# irap_noroslib (Python) — runtime requirements
#
# There is NOTHING to pip install. irap_noroslib talks to ROS using only the Python
# standard library, so this file has no packages in it on purpose.
#
# The libraries it actually uses to communicate are all built into CPython 3.6+:
#
#   xmlrpc.client / xmlrpc.server   ROS Master + Slave API (XML-RPC)
#   socket                          TCPROS / UDPROS transports
#   socketserver                    threaded XML-RPC / slave server
#   threading                       per-connection publish/subscribe threads
#   struct                          message (de)serialization on the wire
#   hashlib                         message md5sum (ROS gentools algorithm)
#   re, os, sys, time, argparse     supporting stdlib modules
#
# All of the above ship with Python — `import irap_noroslib` needs no third-party
# packages.
#
# ---------------------------------------------------------------------------
# OPTIONAL — not required by the library, only by the two webcam DEMOS
# (examples/webcam_pub.py and examples/ros_image_viewer.py). Install these
# yourself ONLY if you want to run those demos; leave them commented otherwise:
#
#   opencv-python        # webcam_pub.py (capture + encode), ros_image_viewer.py
#   numpy                # ros_image_viewer.py (frame buffers)
#
# ros_image_viewer.py is a REAL ROS node, so it also needs rospy + cv_bridge,
# which come from a system ROS install (apt), not pip.
# ---------------------------------------------------------------------------