CODEWITHSUNDEEP
pythonstring
user5460786
user5460786

Reputation:

My Python script is adding extra unwanted characters to my string

I am trying to format a file path inside of a string but it keeps adding extra '\'.

template = "{%% extends 'base.html' %%}"\
"{%% block content %%}"\
"                   "\
"<h1>%s</h2>"\
"                    "\
"<p>%s</p>           "\
"<p><img src= '%s'></p>"\
"{%% endblock %%}" %(title, text, img_path)

it returns this.

 <p><img src= \'myDirectory/scarlett Johanson/1448556501.89.jpg\'></p>{% endblock %}'}

I don't want the \ before the string and after jpg inside the string. I have tried to slice the last character out of the string but it just removes g and leaves \ at the end. what is confusing me though is that it places \ before 'myDirectory.

I am creating the files with

title = time.time()
file_path = os.path.join(BASE_PATH, '%s.jpg') % title

Upvotes: 4

Views: 1971

Answers (4)

Cyrbil
Cyrbil

Reputation: 6478

Just so you can close the question.

When you print a string representation to the console, it is return quoted.

so print(repr('hello')) will output 'hello'

If the string contain quotes, it will be escaped, even if not escaped before:

print(repr("'hello'")) gives '\'hello\''
print(repr('\'hello\'')) gives '\'hello\''
print(repr("""'hello'""")) gives '\'hello\''

Since your are printing a dict that contain a string, the string will get outputted quoted. print({'a', 'hello'}) gives {'a': 'hello'}

Upvotes: 0

Y2H
Y2H

Reputation: 2537

I’m sorry I’m not sure what’s causing the error. However, one way to deal with it is to just use replace. I’m not familiar with your template renderer (I’ve only used jinja2) but it needs to be something like this:

s = s.replace("/","")

Upvotes: 0

ant0nisk
ant0nisk

Reputation: 591

I don't know if it is the best solution, but maybe you could use this after you create the template variable:

template=template.replace("\\'","'")

I believe that something goes on with quote escaping though, at some other part of your code....

Upvotes: 0

John Ruddell
John Ruddell

Reputation: 25862

Did you try using tripple quotes with a string formatter?

template = """
    {%% extends 'base.html' %%}
    {%% block content %%}

    <h1>{title}</h2>

    <p>{text}</p>
    <p><img src={img_path}></p>
    {%% endblock %%}
""".format(title=title, text=text, img_path=img_path)

single quotes shouldn't be used for html attributes

try printing your template to see what you get

print(template)

Upvotes: 1

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