With the latest julia master (Version 0.3.0-prerelease+749 (2013-12-30 18:12 UTC)) I get a similar error:
julia> using PyPlot ERROR: invalid base 10 digit '.' in "0.5" in reload_path at loading.jl:146 in _require at loading.jl:59 in require at loading.jl:46 in reload_path at loading.jl:146 in _require at loading.jl:59 in require at loading.jl:43 while loading /home/ms/.julia/Color/src/Color.jl, in expression starting on line 192 while loading /home/ms/.julia/PyPlot/src/colormaps.jl, in expression starting on line 4 while loading /home/ms/.julia/PyPlot/src/PyPlot.jl, in expression starting on line 244 I've been updating (git pull) and recompiling for the last 3 days and it always happens as above.
