It seems a typo in file {{cookiecutter.project_slug}}/requirements/local.txt

[algo99]

albert@chelsea ~/.cookiecutters/django-crash-starter/{{cookiecutter.project_slug}}/requirements (master)

$ git diff local.txt 
diff --git a/{{cookiecutter.project_slug}}/requirements/local.txt b/{{cookiecutter.project_slug}}/requirements/local.txt
index e29a544e..74174c78 100644
--- a/{{cookiecutter.project_slug}}/requirements/local.txt
+++ b/{{cookiecutter.project_slug}}/requirements/local.txt
@@ -2,7 +2,7 @@
 
 Werkzeug==1.0.1 # https://github.com/pallets/werkzeug
 ipdb==0.13.2  # https://github.com/gotcha/ipdb
-{%- if cookiecutter.windows == 'n' -%}
+{%- if cookiecutter.windows == 'n' %}
 psycopg2-binary==2.8.5  # https://github.com/psycopg/psycopg2
 {%- endif %}

[pydanny]

Fixed in 4e769ee.

Thank you for the catch!