Missing library called 'libcairo.so.2'

[CameronBrooks11]

When I go to run any of the example .py files I get a module error: "ModuleNotFoundError: No module named 'gerber'". I was able to fix this by adding "sys.path.append(os.path.join(os.path.dirname(file), '..'))" at the beginning of the example file(s) but then I get the following error:

Traceback (most recent call last):
File "/home/ckb22/pcb-tools/examples/../gerber/render/cairo_backend.py", line 24, in
import cairo
ModuleNotFoundError: No module named 'cairo'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "pcb_example.py", line 28, in
from gerber.render import theme
File "/home/ckb22/pcb-tools/examples/../gerber/render/init.py", line 27, in
from .cairo_backend import GerberCairoContext
File "/home/ckb22/pcb-tools/examples/../gerber/render/cairo_backend.py", line 26, in
import cairocffi as cairo
File "/home/ckb22/.local/lib/python3.8/site-packages/cairocffi/init.py", line 41, in
cairo = dlopen(ffi, *CAIRO_NAMES)
File "/home/ckb22/.local/lib/python3.8/site-packages/cairocffi/init.py", line 34, in dlopen
return ffi.dlopen(names[0]) # pragma: no cover
File "/home/ckb22/.local/lib/python3.8/site-packages/cffi/api.py", line 150, in dlopen
lib, function_cache = _make_ffi_library(self, name, flags)
File "/home/ckb22/.local/lib/python3.8/site-packages/cffi/api.py", line 832, in _make_ffi_library
backendlib = _load_backend_lib(backend, libname, flags)
File "/home/ckb22/.local/lib/python3.8/site-packages/cffi/api.py", line 827, in _load_backend_lib
raise OSError(msg)
OSError: cannot load library 'libcairo.so.2': libcairo.so.2: cannot open shared object file: No such file or directory. Additionally, ctypes.util.find_library() did not manage to locate a library called 'libcairo.so.2'