Copy/paste keys in range

[hyungeun-kim]

I tried below

cmds.copyKey("pSphere1", at=["translateX", "translateY", "translateZ"], t=(5, 10), an="objects", iub=False, o="keys")
cmds.pasteKey("pSphere1", at=["translateX", "translateY", "translateZ"], an="objects", o="insert", c=False, t=(14,))

But, it can't work as I expected.

I want to copy keys in a range, and paste to somewhere else with maya commands.
Do I misunderstand the maya commands? 

[pixl]

t=(14,)
Your missing your end of range value.

Perhaps this example will be useful:
frameCopyStart = 0
frameCopyEnd = 20
rShoulder = 'ct_Shoulder_R'
lShoulder = 'ct_Shoulder_L'
shoulderOffset = 6
cmds.copyKey(rShoulder, time=(frameCopyStart, frameCopyEnd))
cmds.pasteKey(lShoulder, o='replace', time=(frameCopyStart + shoulderOffset, frameCopyEnd + shoulderOffset))