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Extra points also for the super helpful error messages it throws.
C:\not\sure\about\the\rest\of\you\but\i\needed\to\see\how\long\that\is\to\fully\understand\the\implications\of\this\seemingly\arbitrary\limitation\-\to\give\this\some\context\this\path\is\two\hundred\and\18\characters\
When the names mean nothing, it's harder to gauge. Here's a believable directory structure that might lead to the problem: C:\Users\reasonableusername\Documents\Work\CompuGlobalHyperMegaNet\Non-Project Documents\Administrative\Business Contracts\Fiscal 2013\First Quarter\February\Week Two\TPS Reports Cover Sheet And Memos Template - 3.xls
C:\not\sure\about\the\rest\of\you\but\i\needed\to\see\how\long\that\is\to\fully\understand\the\implications\of\this\seemingly\arbitrary\limitation\-\to\give\this\some\context\this\path\is\two\hundred\and\18\characters\
When the names mean nothing, it's harder to gauge. Here's a believable directory structure that might lead to the problem: C:\Users\reasonableusername\Documents\Work\CompuGlobalHyperMegaNet\Non-Project Documents\Administrative\Business Contracts\Fiscal 2013\First Quarter\February\Week Two\TPS Reports Cover Sheet And Memos Template - 3.xls
C:\not\sure\about\the\rest\of\you\but\i\needed\to\see\how\long\that\is\to\fully\understand\the\implications\of\this\seemingly\arbitrary\limitation\-\to\give\this\some\context\this\path\is\two\hundred\and\18\characters\
And even with tab completion that path shows why only a masochist with OCD thinks paths that long or deep are needed. People who name their folders "Documents and images from the conference in August with CEO" deserve what they get. Although 260 characters does seem like the Excel team think more like me than the rest of (more reasonable) MS.
I'm surprised you can't imagine working on a path that deep. Path arrangements are frequently thrust upon you in work environments and if you have a lot of work (or a lot of people sharing the same folder hierarchy), you may need a deep path structure to keep it organized. Attacking people as "masochists" because their paths are difficult to type seems unfair.
As for your example though, Windows usually shortens path components longer than 8 characters as the path gets longer (so "Program Files" becomes "PROGRA~1") so long single components aren't as problematic as many shorter components.
Apple has a limit of 1024 apparently( correct me if I'm wrong )
Solution by microsoft: http://blogs.msdn.com/b/bclteam/archive/2007/02/13/long-path...
Now, you see how not helpful is this error message? Ok, try that when you are writing a macro in VBA. You literally start regretting the day you were born.
Nothing beats Python stack traces...
Ah.. the old 218 characters in your path problem! Because of course!
It's MAX_PATH in Windows (== 260. There's a 32K Unicode-equivalent limit[1]). In Linux it's PATH_MAX, which is (very likely) 4096. That's a bigger number than 260, sure; but it's still a discrete one; instead of, say, ∞. --- [1] 'To specify an extended-length path, use the "\\?\" prefix. For example, "\\?\D:\very long path".' http://msdn.microsoft.com/en-us/library/windows/desktop/aa36...