def show_old_source(buf, (row, col), tempfile):
    return show_source(buf, (row, col), tempfile, {
        'marker': '---',
        'short': '-',
        'skip': '+',
        'range_pattern': '^@@ -(\d+)',
        'index_pattern': '^index ([a-f0-9]+)'
    })
Closes the connection to the email server.
dataset/ETHPy150Open hut8labs/diffscuss/diffscuss/support/editor.py/show_old_source--crossover with--dataset/ETHPy150Open CollabQ/CollabQ/vendor/django/core/mail.py/SMTPConnection.close