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How to find all occurrences of a substring?

...or m in re.finditer('(?=tt)', 'ttt')] #[0, 1] If you want a reverse find-all without overlaps, you can combine positive and negative lookahead into an expression like this: search = 'tt' [m.start() for m in re.finditer('(?=%s)(?!.{1,%d}%s)' % (search, len(search)-1, search), 'ttt')] #[1] re.fin...
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Is there a library function for Root mean square error (RMSE) in python?

... for a library to calculate this for you is unnecessary over-engineering. All these metrics are a single line of python code at most 2 inches long. The three metrics rmse, mse, rmd, and rms are at their core conceptually identical. RMSE answers the question: "How similar, on average, are the numb...
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Remove all classes that begin with a certain string

... know which class from the group is on the div. I want to be able to clear all classes with a given prefix and then add a new one. If I want to remove all of the classes that begin with "bg", how do I do that? Something like this, but that actually works: ...
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Git stash uncached: how to put away all unstaged changes?

... a snippet from the git-stash help If the --keep-index option is used, all changes already added to the index are left intact. If the --include-untracked option is used, all untracked files are also stashed and then cleaned up with git clean, leaving the working directory in a very cl...
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How to intercept all AJAX requests made by different JS libraries

...erent JS libraries (AngularJS, OpenLayers,...) and need a way to intercept all AJAX responses to be able, in case the logged user session expired (response gets back with 401 Unauthorized status), to redirect him to the login page. ...
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SQL Server 2008: How to query all databases sizes?

...0 databases. What is the most efficient, easiest and 'modern' way to query all databases sizes. 14 Answers ...
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How do you create a read-only user in PostgreSQL?

...grant USAGE on namespaces (schemas) and SELECT on tables and views individually like so: GRANT CONNECT ON DATABASE mydb TO xxx; -- This assumes you're actually connected to mydb.. GRANT USAGE ON SCHEMA public TO xxx; GRANT SELECT ON mytable TO xxx; Multiple tables/views (PostgreSQL 9.0+) In the ...
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How do I give text or an image a transparent background using CSS?

... The first hex number defines the alpha value of the color. Full solution all browsers: .alpha60 { /* Fallback for web browsers that doesn't support RGBa */ background: rgb(0, 0, 0) transparent; /* RGBa with 0.6 opacity */ background: rgba(0, 0, 0, 0.6); /* For IE 5.5 - 7*/ ...
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Do I need a Global.asax.cs file at all if I'm using an OWIN Startup.cs class and move all configurat

... Startup.Configuration gets called slightly later than Application_Start, but I don't think the difference will matter much in most cases. I believe the major reasons we kept the other code in Global.asax are: Consistency with previous versions of MVC...
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In Xcode, how to suppress all warnings in specific source files?

...-click in the Compiler Flags column for that file and enter -w to turn off all warnings for that file. share | improve this answer | follow | ...