How to get radare2 version via r2pipe?

[jcrussell]

I'd like to record the version of radare2 (as reported from r2 -v) from a Python script. I've looked through the docs, usage, and environment variables. Am I missing something?

import r2pipe
r2 = r2pipe.open("/bin/yes")
print(r2.cmd("?"))

I could do a subprocess.getoutput(["r2", "-v"]) but that seems heavy handed given that radare2 is already running.

[aayushdhote]

[jcrussell]

This is not a valid command:

r2.cmd("version")

[trufae]

Just run the -v command, or the r2 -v or the ?V you also have the json version if you the j suffix.

note that none of these require ! System execution. The r2 command is an r2 command that runs r2 inside r2 :)

[jcrussell]

Thanks, this worked:

r2.cmdj("?Vj")