Is there any way to place a declared string in between unicode symbols without concatenation?
For example, I have declared a string a = "house". Is there anyway I can declare <\house/> without
having to result to "<\\" + a + "/>" ? Concatenation may become cumbersome when more unicode symbols get involved.
Add a comment
|
2 Answers
how about string interpolation?
"<\\%s/>" % a
or for multiple items:
<"\\%s %s/>" % (a, b)
Also works with dictionaries:
"<\\%(a)s/>" % {'a': a}
Python 3.x style interpolation is done using the built in str.format method:
"<\\{}/>".format(a)
"<\\{} {}/>".format(a, b)
"<\\{1} {0}/>".format(a, b) # => "<\\" + b + " " + a + "/>"
"<\\{a} {b}/>".format(a=a, b=b)
2 Comments
Blender
"Python 3.x style" works in 2.6+, so it's not really 3.x style
Erik Kaplun
@Blender: afaik the feature was introduced in and backported to 2.x from 3.x.
You can use the str.format method:
a = "Hello {name}, welcome to {place}."
a.format(name="Salem", place="Tokyo") # "Hello Salem, welcome to Tokyo."
docs.python.org - String format syntax
If you need something more powerful, you can use a template engine. There is a quick example with Jinja2:
jinja_example.py
from jinja2 import Template template_file = Template(open("templatefile").read()) obj = [ {"name": "John", "surname": "Doe"}, {"name": "Foo", "surname": "Bar"} ] print template_file.render(data=obj)templatefile
<html> <body> {% if data %} {% for user in data %} <h1>Hello {{ user.name }} {{ user.surname }}.</h1> {% endfor %} {% else %} <h1>Nothing found.</h1> {% endif %} </body> </html>
And the output (some newline's removed):
$ python jinja_example.py
<html>
<body>
<h1>Hello John Doe.</h1>
<h1>Hello Foo Bar.</h1>
</body>
</html>
You can find a huge list of template engines in Python Wiki.
1 Comment
Concerned_Citizen
Python uses '#' for comments instead of '//' .