String template: a simpler alternative and a string template alternative

Source: Internet
Author: User

String template: a simpler alternative and a string template alternative

The introduction of the new string Template object makes the string module re-active. The Template object has two methods: substitute () and safe_substitute (). the former is more rigorous. when the key is missing, it will report a KeyError exception, while the latter directly displays the string intact when the key is missing.

>>> From string import Template
>>> S = Template ('there are $ {howation }$ {lang} Qutotation symbols ')
>>> Print s. substitute (lang = 'python', howute = 3)
There are 3 Python Qutotation Symbols


>>> Print s. safe_substitute (lang = 'python ')

There are $ {howmany} Python QuotationSymbols




This article is excerpted from python core programming version 2 page: 179.

It is mainly used as a rare knowledge point for bloggers to take an exam.

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.