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Source code for galaxy.web.framework.helpers.tags

Code derived from WebHelpers: https://bitbucket.org/bbangert/webhelpers

Licensed under the MIT license: https://bitbucket.org/bbangert/webhelpers/src/tip/LICENSE

from markupsafe import escape_silent

[docs]def format_attrs(**attrs): """Format HTML attributes into a string of ' key="value"' pairs which can be inserted into an HTML tag. The attributes are sorted alphabetically. If any value is None, the entire attribute is suppressed. Usage: >>> format_attrs(p=2, q=3) == u' p="2" q="3"' True >>> format_attrs(p=2, q=None) == u' p="2"' True >>> format_attrs(p=None) == u'' True """ strings = [' {}="{}"'.format(attr, escape_silent(value)) for attr, value in sorted(attrs.items()) if value is not None] return ''.join(strings)