Implement first proof of concept

src/example1.yml

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+nodes:
+  X1:
+    type: D-Sub
+    gender: female
+    pinout: [DCD,RX,TX,DTR,GND,DSR,RTS,CTS,RI]
+    random: yes
+  X2:
+    type: Molex KK 254
+    gender: female
+    pinout: [GND, RX, TX, N/C, OUT, IN]
+
+wires:
+  W1:
+    mm2: 0.25
+    length: 0.2
+    color_code: DIN
+    num_wires: 3
+    shield: true
+
+connections:
+  -
+    items: [X1,W1,X2]
+    X1: 5 # [5,2,3]
+    W1: 1 # [1,2,3]
+    X2: 1 # [1,3,2]
+  -
+    items: [X1,W1,X2]
+    X1: 2 # [5,2,3]
+    W1: 2 # [1,2,3]
+    X2: 3 # [1,3,2]
+  -
+    items: [X1,W1,X2]
+    X1: 3 # [5,2,3]
+    W1: 3 # [1,2,3]
+    X2: 2 # [1,3,2]
+  -
+    items: [X1,W1,X2]
+    X1: 5
+    W1: s
+    X2: ~
+
+options:
+  # for connectors
+  show_connector_name: true
+  show_num_pins: true
+  # for wires
+  show_wire_name: true
+  show_num_wires: true
+  show_wire_pinout: true
+  show awg_equiv: true

src/yaml2wireviz.py

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+import yaml
+import wireviz
+
+filename = 'example1.yml'
+
+with open(filename, 'r') as stream:
+    try:
+        input = yaml.safe_load(stream)
+    except yaml.YAMLError as exc:
+        print(exc)
+
+# print(input)
+
+sections = ('options','nodes','wires')
+
+for s in sections:
+    print(s + ':')
+    for k in input[s]:
+        print(k + ': ', end='')
+        print(input[s][k])
+    print()
+
+print('connections:')
+for s in input['connections']:
+    print(s)
+print()
+
+h = wireviz.Harness()
+for k in input['nodes']:
+    n = input['nodes'][k]
+    h.add_node(k, type=n['type'], gender=n['gender'], pinout=n['pinout'])
+
+for k in input['wires']:
+    c = input['wires'][k]
+    h.add_cable(k, mm2=c['mm2'], length=c['length'], num_wires=c['num_wires'], color_code=c['color_code'], shield=c['shield'])
+
+for o in input['connections']:
+    c1 = o['items'][0]
+    w  = o['items'][1]
+    c2 = o['items'][2]
+    h.connect(w,c1,o[c1],o[w],c2,o[c2])
+
+h.output(filename='output', format=('png',), view=False)