# os
#### cwd()

Get the absolute path of the current working directory.

#### env()

Return the value of the environment variable v.

#### sys()



#### system()



#### quit()



#### exit()



#### reindex_static()



#### gc()



#### eval()



#### make_body()



#### make_circle2d()



#### make_poly2d()



#### make_seg2d()



#### make_texture()



#### make_tex_data()



#### make_font()



#### make_model()



#### make_transform()



#### make_emitter()



#### make_buffer()



#### make_line_prim()



#### make_cylinder()



#### make_cone()



#### make_disk()



#### make_torus()



#### make_sphere()



#### make_klein_bottle()



#### make_trefoil_knot()



#### make_hemisphere()



#### make_plane()



#### make_video()



#### platform
**string**



#### user
**string**



#### home
**string**



#### prefpath()



#### openurl(url)