First, you need to specified CODEMIRROR_PATH on settings.py . CODEMIRROR_PATH is the URI of CodeMirror directory like CODEMIRROR_PATH = r"javascript/codemirror" . If you don't specify it, it defaults to 'codemirror' . CodeMirror should be put there.

Use codemirror.CodeMirrorTextarea widget for target Textarea like below:

from django import forms
from codemirror import CodeMirrorTextarea
codemirror_widget = CodeMirrorTextarea(
    mode="python",
    theme="cobalt",
    config={
        'fixedGutter': True
document = forms.TextField(widget=codemirror_widget)

Settings

Use the followings in your settings.py .

CODEMIRROR_PATH

The URI of CodeMirror directory (your CodeMirror installation should live in {{ STATIC_URL }}/{{ CODEMIRROR_PATH }} )

CODEMIRROR_MODE

The default mode which may be a string or configuration map (DEFAULT: 'javascript' )

CODEMIRROR_THEME

The default theme applied (DEFAULT: 'default' )

CODEMIRROR_CONFIG

Base mapping for the rest of the CodeMirror options (DEFAULT: { 'lineNumbers': True } )

CODEMIRROR_JS_VAR_FORMAT

A format string interpolated with the form field name to name a global JS variable that will hold the CodeMirror editor object. For example with CODEMIRROR_JS_VAR_FORMAT = "%s_editor" and a field named 'code', the JS variable name would be 'code_editor'. If CODEMIRROR_JS_VAR_FORMAT is None, no global variable is created (DEFAULT: None)