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“Unicode Error ”unicodeescape" codec can't decode bytes… Cannot open text files in Python 3 [duplica

... The problem is with the string "C:\Users\Eric\Desktop\beeline.txt" Here, \U in "C:\Users... starts an eight-character Unicode escape, such as \U00014321. In your code, the escape is followed by the character 's', which is invalid. You ei...
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What is a regular expression for a MAC Address?

...8 addresses in human-friendly form is six groups of two hexadecimal digits, separated by hyphens - or colons :. So: ^([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})$ share | improve this answer ...
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What .NET collection provides the fastest search

I have 60k items that need to be checked against a 20k lookup list. Is there a collection object (like List , HashTable ) that provides an exceptionly fast Contains() method? Or will I have to write my own? In otherwords, is the default Contains() method just scan each item or does it use a be...
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Windows batch script launch program and exit console

... like this. start %SystemRoot%\Notepad.exe This command is fine as long it doesn't has space in the path. To handle space in the path for just in case, we added the " quotes like this. start "%SystemRoot%\Notepad.exe" However running this command would just start another blank command prompt. ...
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Lost my schema.rb! Can it be regenerated?

Due to some deployment issues I stopped tracking schema.rb in git. Somehow I have stuffed this up and somewhere along the way my schema.rb file has disappeared. ...
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Connection to SQL Server Works Sometimes

...is only sometimes able to connect to another server on the local network. It seems random whether a given connection attempt succeeds or fails. The connection is using a connection string in the form: ...
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Use Fieldset Legend with bootstrap

...nd.scheduler-border to also use: legend.scheduler-border { width:inherit; /* Or auto */ padding:0 10px; /* To give a bit of padding on the left and right */ border-bottom:none; } JSFiddle example. You'll also need to ensure your custom stylesheet is being added after Bootstrap to pre...
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Is there an easy way to create ordinals in C#?

...ormat strings As you can see, there is nothing in there about ordinals, so it can't be done using String.Format. However its not really that hard to write a function to do it. public static string AddOrdinal(int num) { if( num <= 0 ) return num.ToString(); switch(num % 100) { ...
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How do I iterate over a range of numbers defined by variables in Bash?

How do I iterate over a range of numbers in Bash when the range is given by a variable? 20 Answers ...
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How to check if a given directory exists in Ruby

I am trying to write a script which automatically checks out or updates a Subversion URL based on whether a specified directory exists or not. ...