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    <p>You could just make a nice little looping function.</p> <pre><code>def replace_all(text, dic): for i, j in dic.iteritems(): text = text.replace(i, j) return text </code></pre> <p>where <code>text</code> is the complete string and <code>dic</code> is a dictionary &mdash; each definition is a string that will replace a match to the term.</p> <p><strong>Note</strong>: in Python 3, <code>iteritems()</code> has been replaced with <code>items()</code></p> <hr> <p><strong>Careful:</strong> Python dictionaries don't have a reliable order for iteration. This solution only solves your problem if: </p> <ul> <li>order of replacements is irrelevant</li> <li>it's ok for a replacement to change the results of previous replacements</li> </ul> <p>For instance:</p> <pre><code>d = { "cat": "dog", "dog": "pig"} mySentence = "This is my cat and this is my dog." replace_all(mySentence, d) print(mySentence) </code></pre> <p>Possible output #1:</p> <pre>"This is my pig and this is my pig."</pre> <p>Possible output #2</p> <pre>"This is my dog and this is my pig."</pre> <p>One possible fix is to use an OrderedDict.</p> <pre><code>from collections import OrderedDict def replace_all(text, dic): for i, j in dic.items(): text = text.replace(i, j) return text od = OrderedDict([("cat", "dog"), ("dog", "pig")]) mySentence = "This is my cat and this is my dog." replace_all(mySentence, od) print(mySentence) </code></pre> <p>Output:</p> <pre><code>"This is my pig and this is my pig." </code></pre> <hr> <p><strong>Careful #2:</strong> Inefficient if your <code>text</code> string is too big or there are many pairs in the dictionary.</p>
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    1. POHow to replace multiple substrings of a string?
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    1. USJoseph Hansen
    1. USJoseph Hansen
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    1. COI almost get it, can you type out an example of the `dic` definition
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    2. COread it here: http://gomputor.wordpress.com/2008/09/27/search-replace-multiple-words-or-characters-with-python/
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    3. COThe order in which you apply the different replacements will matter - so instead of using a standard dict, consider using an `OrderedDict` - or a list of 2-tuples.
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      1. USslothrop
 

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