backslash

In python, I am trying to replace a single backslash ("\") with a double backslash("\"). I have the following code: directory = string.replace("C:\Users\Josh\Desktop\20130216", "\", "\\") However, this gives an error message saying it doesn't like the double backslash. Can anyone help? No need to use str.replace or string.replace here, just convert that string to a raw string: >>> strs = r"C:\Users\Josh\Desktop\20130216" ^ | notice the 'r' Below is the repr version of the above string, that's why you're seeing \\ here. But, in fact the actual string contains just '\' not \\ . >>> strs 'C:\

I don't understand this Ruby code: >> puts '\\ <- single backslash' # \ <- single backslash >> puts '\\ <- 2x a, because 2 backslashes get replaced'.sub(/\\/, 'aa') # aa <- 2x a, because two backslashes get replaced so far, all as expected. but if we search for 1 with /\\/ , and replace with 2, encoded by '\\\\' , why do we get this: >> puts '\\ <- only 1 ... replace 1 with 2'.sub(/\\/, '\\\\') # \ <- only 1 backslash, even though we replace 1 with 2 and then, when we encode 3 with '\\\\\\' , we only get 2: >> puts '\\ <- only 2 ... 1 with 3'.sub(/\\/, '\\\\\\') # \\ <- 2 backslashes, even

It seems Windows insists on writing a backslash \ in file paths, whereas .NET's URI class writes them with a slash / . Is there any right way, that is accepted even in the most primitive systems? And why is .NET's URI showing the other slash compared with the rest of Windows? A file path and a URI are different. \ is correct in a Windows file path and / is correct in a URI. So this file path: C:\Documents\Foo translates to this URI: file:///C:/Documents/Foo Windows is the bastard child of operating systems in this regard, but a lot of APIs will accept forward slashes as well. On Windows, a

I run R on Windows, and have a csv file on the Desktop. I load it as follows, x<-read.csv("C:\Users\surfcat\Desktop\2006_dissimilarity.csv",header=TRUE) but the R gives the following error message Error: '\U' used without hex digits in character string starting "C:\U" So what's the correct way to load this file. I am using Vista replace all the \ with \\ . it's trying to escape the next character in this case the U so to insert a \ you need to insert an escaped \ which is \\ Please do not mark this response as correct as smitec has already answered correctly. I'm including a convenience

I have very small and simple problem but I am not getting solutions on it. Actually I am getting a CSV file path using file chooser. I am entering the data in this csv file in to database using load data local infile query. Suppose my entered file path is "C:\title.csv" When I put this string in to query the you will see the \t combination in the path. This \t which is actually part of the file path and not the escape character '\t'. But the java and mysql consider it as escape character. then I tried to replace '\' in the file path string with "\\" using following code line. String filepath=