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Python: most idiomatic way to convert None to empty string?

What is the most idiomatic way to do the following? 16 Answers 16 ...
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IE7 Z-Index Layering Issues

I've isolated a little test case of IE7's z-index bug, but don't know how to fix it. I have been playing with z-index all day long. ...
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PostgreSQL: How to pass parameters from command line?

I have a somewhat detailed query in a script that uses ? placeholders. I wanted to test this same query directly from the psql command line (outside the script). I want to avoid going in and replacing all the ? with actual values, instead I'd like to pass the arguments after the query. ...
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Initialising mock objects - MockIto

There are many ways to initialize a mock object using MockIto. What is best way among these ? 6 Answers ...
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Does Javascript pass by reference? [duplicate]

Does Javascript pass by references or pass by values? Here is an example from Javascript: The Good Parts . I am very confused about my parameter for the rectangle function. It is actually undefined , and redefined inside the function. There are no original reference. If I remove it from the func...
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Servlet for serving static content

I deploy a webapp on two different containers (Tomcat and Jetty), but their default servlets for serving the static content have a different way of handling the URL structure I want to use ( details ). ...
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How do you make sure email you send programmatically is not automatically marked as spam?

This is a tricky one and I've always relied on techniques, such as permission-based emails (i.e. only sending to people you have permission to send to) and not using blatantly spamish terminology. ...
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partial string formatting

Is it possible to do partial string formatting with the advanced string formatting methods, similar to the string template safe_substitute() function? ...
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Insert auto increment primary key to existing table

I am trying to alter a table which has no primary key nor auto_increment column. I know how to add an primary key column but I was wondering if it's possible to insert data into the primary key column automatically (I already have 500 rows in DB and want to give them id but I don't want to do it man...
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How do I remove all specific characters at the end of a string in PHP?

How do I remove the last character only if it's a period? 9 Answers 9 ...