Xtykutl

How can I do line break in jinja2 in python?

Below is my code

t1 = Template("{% for i in range(0, a1) %}|{{ mylist1[i] }}{% for j in range(0, (20 - (mylist1[i]|length))) %}{{ space }}{% endfor %}|{{ dicts[mylist1[i]][dicts[mylist1[i]].keys()[0]] }}{% for j in range(0, (20 - (dicts[mylist1[i]][dicts[mylist1[i]].keys()[0]]|length))) %}{{ space }}{% endfor %}|n{{ string }}{% endfor %}")

This code will result in:

Since it is horizontally too long, I want to write them in few lines.

However, If I do what I usually do in python like below:

t1 = Template("{% for i in range(0, a1) %}|

               {{ mylist1[i] }}

               {% for j in range(0, (20 - (mylist1[i]|length))) %}

                    {{ space }}

               {% endfor %}|

               {{ dicts[mylist1[i]][dicts[mylist1[i]].keys()[0]] }}

               {% for j in range(0, (20 - (dicts[mylist1[i]][dicts[mylist1[i]].keys()[0]]|length))) %}

                   {{ space }}

               {% endfor %}|n

               {{ string }}

               {% endfor %}")

The result will be

Can anyone help me to solve this?

Thank you.

Python preserver spaces so you will see them in the results as well.

str = "{% for i in range(0, a1) %}|"

str += "{{ mylist1[i] }}"

str += "{% for j in range(0, (20 - (mylist1[i]|length))) %}"

str += "{{ space }}"

str += "{% endfor %}|"

str += "{{ dicts[mylist1[i]][dicts[mylist1[i]].keys()[0]] }}"

str += "{% for j in range(0, (20 - (dicts[mylist1[i]]"

str += "[dicts[mylist1[i]].keys()[0]]|length))) %}"

str += "{{ space }}"

str += "{% endfor %}|n"

str += "{{ string }}"

str += "{% endfor %}")"



# and then use the generates string

t1 = Template(str);

You shouldn't use string concatenation like in this answer. In your case take advantage of parentheses and implicit string concatenation.

t1 = Template("{% for i in range(0, a1) %}|{{ mylist1[i] }}n"

              "    {% for j in range(0, (20 - (mylist1[i]|length))) %}n"

              "        {{ space }}n"

              "    {% endfor %}|{{ dicts[mylist1[i]][dicts[mylist1[i]].keys()[0]] }}n"

              "    {% for j in range(0, (20 - (dicts[mylist1[i]][dicts[mylist1[i]].keys()[0]]|length))) %}n"

              "        {{ space }}n"

              "    {% endfor %}|\n{{ string }}n"  # Notice "\n" to keep it for Jinja.

              "{% endfor %}")