rst table printer

rst_table.py

#!/usr/bin/env python3.7

# pretty-print columns of text

import sys


def table_print(lines_to_print, padding=3):
    """Given a list of tuples/lists, print a nicely formatted .rst table"""

    one_cell = "%*s%%-*s" % ((padding, " "))
    line_template = []
    column_widths = []
    for line in lines_to_print:
        cell_count = len(line)
        while cell_count > len(line_template):
            line_template.append(one_cell)
            column_widths.append(0)
        for i, cell in enumerate(line):
            cell = str(cell)  # just in case it's not a string already
            len_cell = len(cell)
            target_width = len_cell + padding
            if target_width > column_widths[i]:
                column_widths[i] = target_width
    out = []
    col_count = len(column_widths)
    line_template = "|".join(line_template)
    break_line = []
    for i, w in enumerate(column_widths):
        break_line.append("-" * padding + "-" * w)
    break_line = "+" + "+".join(break_line) + "+"
    out.append(break_line)
    for line in lines_to_print:
        while col_count > len(line):
            line += ("",)
        params = tuple(item for sublist in zip(column_widths, line) for item in sublist)
        out_line = line_template % params
        if out_line.replace(" ", "") == "":
            out_line = ""
        out_line = "|" + out_line + "|"
        out.append(out_line)
        out.append(break_line)
    return "\n".join(out)


if __name__ == "__main__":
    raw_data = []
    for line in sys.stdin:
        line = line.strip()
        parts = [x.strip() for x in line.split("|")]
        raw_data.append(parts)
    print(table_print(raw_data, padding=1))

sample_input.txt

GET Object | https://developer.openstack.org/api-ref/object-store/#delete-container
HEAD | https://developer.openstack.org/api-ref/object-store/#show-object-metadata
PUT | https://developer.openstack.org/api-ref/object-store/#create-or-replace-object
POST | https://developer.openstack.org/api-ref/object-store/#create-or-update-object-metadata
COPY | https://developer.openstack.org/api-ref/object-store/#copy-object
DELETE | https://developer.openstack.org/api-ref/object-store/#delete-object
OPTIONS
DLO | :ref:`dynamic-large-objects` | api/large_objects.rst
SLO | :ref:`static-large-objects` | api/large_objects.rst
TempURLs | api/temporary_url_middleware.rst
Form POST | api/form_post_middleware.rst
Bulk operations | api/bulk-delete.rst
Symlinks | :ref:`symlink`
Encryption | :ref:`overview_encryption`
Versioning | api/object_versioning.rst
Expiring objects | :ref:`overview_expiring_objects` | api/object-expiration.rst

GET Container | https://developer.openstack.org/api-ref/object-store/#show-account-details-and-list-containers | api/pagination.rst
HEAD | https://developer.openstack.org/api-ref/object-store/#show-container-metadata
PUT | https://developer.openstack.org/api-ref/object-store/#show-container-metadata
POST | https://developer.openstack.org/api-ref/object-store/#show-container-metadata
DELETE | https://developer.openstack.org/api-ref/object-store/#delete-container
OPTIONS
TempURLs | api/temporary_url_middleware.rst
Domain remap | :ref:`domainremap`
Static websites | api/static-website.rst
Quotas | api/container_quotas.rst
ACLs | :ref:`container_acls`

GET Account | https://developer.openstack.org/api-ref/object-store/#show-account-details-and-list-containers | api/pagination.rst
HEAD | https://developer.openstack.org/api-ref/object-store/#show-account-details-and-list-containers
PUT
POST | https://developer.openstack.org/api-ref/object-store/#show-account-details-and-list-containers
DELETE
OPTIONS
Quotas
ACLs | :ref:`account_acls`
Read-only | :ref:`read_only`

Discoverability | https://developer.openstack.org/api-ref/object-store/#list-activated-capabilities
Read-only | :ref:`read_only`
Crossdomain xml | :ref:`crossdomain`
CORS | :ref:`cors_overview`
list endpoints | https://developer.openstack.org/api-ref/object-store/#create-or-update-object-metadata
container sync | :ref:`container-sync`

sample_output.rst

GET Object	https://developer.openstack.org/api-ref/object-store/#delete-container
HEAD	https://developer.openstack.org/api-ref/object-store/#show-object-metadata
PUT	https://developer.openstack.org/api-ref/object-store/#create-or-replace-object
POST	https://developer.openstack.org/api-ref/object-store/#create-or-update-object-metadata
COPY	https://developer.openstack.org/api-ref/object-store/#copy-object
DELETE	https://developer.openstack.org/api-ref/object-store/#delete-object
OPTIONS
DLO	:ref:`dynamic-large-objects`	api/large_objects.rst
SLO	:ref:`static-large-objects`	api/large_objects.rst
TempURLs	api/temporary_url_middleware.rst
Form POST	api/form_post_middleware.rst
Bulk operations	api/bulk-delete.rst
Symlinks	:ref:`symlink`
Encryption	:ref:`overview_encryption`
Versioning	api/object_versioning.rst
Expiring objects	:ref:`overview_expiring_objects`	api/object-expiration.rst
GET Container	https://developer.openstack.org/api-ref/object-store/#show-account-details-and-list-containers	api/pagination.rst
HEAD	https://developer.openstack.org/api-ref/object-store/#show-container-metadata
PUT	https://developer.openstack.org/api-ref/object-store/#show-container-metadata
POST	https://developer.openstack.org/api-ref/object-store/#show-container-metadata
DELETE	https://developer.openstack.org/api-ref/object-store/#delete-container
OPTIONS
TempURLs	api/temporary_url_middleware.rst
Domain remap	:ref:`domainremap`
Static websites	api/static-website.rst
Quotas	api/container_quotas.rst
ACLs	:ref:`container_acls`
GET Account	https://developer.openstack.org/api-ref/object-store/#show-account-details-and-list-containers	api/pagination.rst
HEAD	https://developer.openstack.org/api-ref/object-store/#show-account-details-and-list-containers
PUT
POST	https://developer.openstack.org/api-ref/object-store/#show-account-details-and-list-containers
DELETE
OPTIONS
Quotas
ACLs	:ref:`account_acls`
Read-only	:ref:`read_only`
Discoverability	https://developer.openstack.org/api-ref/object-store/#list-activated-capabilities
Read-only	:ref:`read_only`
Crossdomain xml	:ref:`crossdomain`
CORS	:ref:`cors_overview`
list endpoints	https://developer.openstack.org/api-ref/object-store/#create-or-update-object-metadata
container sync	:ref:`container-sync`

so pretty! ⭐