libraries - Python: How to use a third-party library -

i feeling stupid. python beginner , use third-party libraries, such dxfgrabber.

i have played following, given in section, don't know further:

import dxfgrabber  dxf = dxfgrabber.readfile("1.dxf")  print("dxf version: {}".format(dxf.dxfversion))  header_var_count = len(dxf.header)   layer_count = len(dxf.layers)   entity_count = len(dxf.entities)   print layer_count  print entity_count  print dxf.layers 

output far is:

dxf version: ac1009  6  2  <dxfgrabber.layers.layertable object @ 0x10f42b590> 

my questions:

• so know there 6 layers , 2 entities. how can further information like: layer name, entities?

• how can access entities (for example know there 2 lines)? how can lines?

• i write code entities (such lines) displayed on canvas.

it seems library should ready use, maybe people more knowledge python me.

try example:

for layer in dxf.layers:     print layer.name, layer.color 

explanation:

the output of last print command indicates dxf.layers layertable object. in documentation can see layertable object has property:

layertable.__iter__() iterate on layers, yields layer objects. 

this means can iterated in loop or whatever construction takes iterable. in case of entities can this:

all_layer_0_entities = [entity entity in dwg.entities if entity.layer == '0'] 

here applies same principle, object dwg.entities being iterated yielding entity in each iteration.

you right documentation use more examples. see this post of that.