libpt

libpt is used at run time in 5 crates.

Number of dependers	libpt version	Downloads/month
0	0.7.4	210
2	0.6.0	51
1	0.5.1	48
2	0.3.11	10

Depender (with downloads and own rev deps)			libpt version
270		crock		^0.6.0
160		numf		^0.6.0
150		hedu		^0.5.1
		netpong		^0.3.11
		autocrate		^0.3.11