runserver and tests work without reportlab installed.

hc/payments/invoices.py

@@ -1,20 +1,22 @@
 # coding: utf-8
 
-from reportlab.lib.pagesizes import A4
-from reportlab.lib.units import inch
-from reportlab.pdfgen import canvas
-
-
-W, H = A4
+try:
+    from reportlab.lib.pagesizes import A4
+    from reportlab.lib.units import inch
+    from reportlab.pdfgen.canvas import Canvas
+    W, H = A4
+except ImportError:
+    # Don't crash if reportlab is not installed.
+    Canvas = object
 
 
 def f(dt):
     return dt.strftime("%b. %-d, %Y")
 
 
-class PdfInvoice(canvas.Canvas):
+class PdfInvoice(Canvas):
     def __init__(self, fileobj):
-        canvas.Canvas.__init__(self, fileobj, pagesize=A4, pageCompression=0)
+        Canvas.__init__(self, fileobj, pagesize=A4, pageCompression=0)
         self.head_y = H - inch * 0.5
 
     def linefeed(self):
@@ -52,7 +54,6 @@ class PdfInvoice(canvas.Canvas):
         self.head_y -= inch / 8
 
     def render(self, tx, bill_to):
-        width, height = A4
         invoice_id = "MS-HC-%s" % tx.id.upper()
         self.setTitle(invoice_id)
 

hc/payments/tests/test_pdf_invoice.py

@@ -1,10 +1,16 @@
 from mock import Mock, patch
+from unittest import skipIf
 
 from django.utils.timezone import now
 from hc.payments.models import Subscription
 from hc.test import BaseTestCase
 import six
 
+try:
+    import reportlab
+except ImportError:
+    reportlab = None
+
 
 class PdfInvoiceTestCase(BaseTestCase):
 
@@ -24,9 +30,9 @@ class PdfInvoiceTestCase(BaseTestCase):
         self.tx.subscription_details.billing_period_start_date = now()
         self.tx.subscription_details.billing_period_end_date = now()
 
+    @skipIf(reportlab is None, "reportlab not installed")
     @patch("hc.payments.views.braintree")
     def test_it_works(self, mock_braintree):
-
         mock_braintree.Transaction.find.return_value = self.tx
 
         self.client.login(username="alice@example.org", password="password")
@@ -47,6 +53,7 @@ class PdfInvoiceTestCase(BaseTestCase):
         r = self.client.get("/invoice/pdf/abc123/")
         self.assertEqual(r.status_code, 403)
 
+    @skipIf(reportlab is None, "reportlab not installed")
     @patch("hc.payments.views.braintree")
     def test_it_shows_company_data(self, mock_braintree):
         self.profile.bill_to = "Alice and Partners"