Basic Support for Python 3 (netbox-community#827)

* Rudimentary python3 support

* update docs and trigger Travis

* fix some of the tests

* fix all python3 errors

* change env calls to just python

* add @python_2_unicode_compatible decorator to models for python2 compatibility

* switch netbox.configuration to from netbox import configuration

.gitignore

@@ -1,5 +1,6 @@
 *.pyc
 /netbox/netbox/configuration.py
+/netbox/netbox/ldap_config.py
 /netbox/static
 .idea
 /*.sh

.travis.yml

@@ -9,6 +9,9 @@ env:
 language: python
 python:
   - "2.7"
+  - "3.4"
+  - "3.5"
+  - "3.6"
 install:
   - pip install -r requirements.txt
   - pip install pep8

docs/installation/netbox.md

@@ -3,14 +3,14 @@
 **Debian/Ubuntu**
 
 ```no-highlight
-# apt-get install -y python2.7 python-dev python-pip libxml2-dev libxslt1-dev libffi-dev graphviz libpq-dev libssl-dev
+# apt-get install -y python3 python3-dev python3-pip libxml2-dev libxslt1-dev libffi-dev graphviz libpq-dev libssl-dev
 ```
 
 **CentOS/RHEL**
 
 ```no-highlight
 # yum install -y epel-release
-# yum install -y gcc python2 python-devel python-pip libxml2-devel libxslt-devel libffi-devel graphviz openssl-devel
+# yum install -y gcc python3 python3-devel python3-pip libxml2-devel libxslt-devel libffi-devel graphviz openssl-devel
 ```
 
 You may opt to install NetBox either from a numbered release or by cloning the master branch of its repository on GitHub.

netbox/circuits/models.py

@@ -1,6 +1,7 @@
 from django.contrib.contenttypes.fields import GenericRelation
 from django.core.urlresolvers import reverse
 from django.db import models
+from django.utils.encoding import python_2_unicode_compatible
 
 from dcim.fields import ASNField
 from extras.models import CustomFieldModel, CustomFieldValue
@@ -33,6 +34,7 @@ def humanize_speed(speed):
         return '{} Kbps'.format(speed)
 
 
+@python_2_unicode_compatible
 class Provider(CreatedUpdatedModel, CustomFieldModel):
     """
     Each Circuit belongs to a Provider. This is usually a telecommunications company or similar organization. This model
@@ -51,7 +53,7 @@ class Provider(CreatedUpdatedModel, CustomFieldModel):
     class Meta:
         ordering = ['name']
 
-    def __unicode__(self):
+    def __str__(self):
         return self.name
 
     def get_absolute_url(self):
@@ -67,6 +69,7 @@ def to_csv(self):
         ])
 
 
+@python_2_unicode_compatible
 class CircuitType(models.Model):
     """
     Circuits can be organized by their functional role. For example, a user might wish to define CircuitTypes named
@@ -78,13 +81,14 @@ class CircuitType(models.Model):
     class Meta:
         ordering = ['name']
 
-    def __unicode__(self):
+    def __str__(self):
         return self.name
 
     def get_absolute_url(self):
         return "{}?type={}".format(reverse('circuits:circuit_list'), self.slug)
 
 
+@python_2_unicode_compatible
 class Circuit(CreatedUpdatedModel, CustomFieldModel):
     """
     A communications circuit connects two points. Each Circuit belongs to a Provider; Providers may have multiple
@@ -105,7 +109,7 @@ class Meta:
         ordering = ['provider', 'cid']
         unique_together = ['provider', 'cid']
 
-    def __unicode__(self):
+    def __str__(self):
         return u'{} {}'.format(self.provider, self.cid)
 
     def get_absolute_url(self):
@@ -141,6 +145,7 @@ def commit_rate_human(self):
     commit_rate_human.admin_order_field = 'commit_rate'
 
 
+@python_2_unicode_compatible
 class CircuitTermination(models.Model):
     circuit = models.ForeignKey('Circuit', related_name='terminations', on_delete=models.CASCADE)
     term_side = models.CharField(max_length=1, choices=TERM_SIDE_CHOICES, verbose_name='Termination')
@@ -156,7 +161,7 @@ class Meta:
         ordering = ['circuit', 'term_side']
         unique_together = ['circuit', 'term_side']
 
-    def __unicode__(self):
+    def __str__(self):
         return u'{} (Side {})'.format(self.circuit, self.get_term_side_display())
 
     def get_peer_termination(self):

netbox/dcim/forms.py

@@ -13,7 +13,7 @@
     SlugField,
 )
 
-from formfields import MACAddressFormField
+from .formfields import MACAddressFormField
 from .models import (
     DeviceBay, DeviceBayTemplate, CONNECTION_STATUS_CHOICES, CONNECTION_STATUS_PLANNED, CONNECTION_STATUS_CONNECTED,
     ConsolePort, ConsolePortTemplate, ConsoleServerPort, ConsoleServerPortTemplate, Device, DeviceRole, DeviceType,