If the file is inaccessible, raise the same Exception the built-in global open() would.  This makes for more specific and helpful errors. This is done by doing an experimental open() on the file and not catching anything.

fix handling of _unsigned attribute in nc files; units=1 no longer display on plots; commands on the command line should be case sensitive; better handling of shape () data

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refactoring the stats module and adding more detailed analysis of individual data sets; fixed a bug that caused glance to crash when loading character variables in netcdf files

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moving a huge pile of strings into constants modules and refactoring several groups of functions out of compare.py into different modules organized by their logical function

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fixed which doc strings are shown for the inspectStats command; moved gui constants into a separate file; hooked up more of the settings tab; built case insensitive cache for the attributes and variable names in the io module; fixed the validator in the gui so it will accept None as well as doubles

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moved to new version to represent the gui change; marked glance no longer zip safe due to mako needing to search directories for templates; moved glance non-code files into the stuff subdirectory; overhauled report generation to remove copied code; more kinds of files can get all variable attributes using io; checked in initial imapp idea plotting code; set up initial stats window in gui; added numeric validation to some gui input fields; changed the statistical analysis constructors to allow for direct use of data objects

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adding zero padding to floats displayed in reports; adding alpha version of new gui; adding initial version of global file attribute load to io; now using Qt4Agg renderer and setting ion and ioff

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adding pass fail control in reportGen; adding _delta statistics and renaming some others to be consistent; fixed calculation of the standard deviation; comment out some print statements in the io module

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a draft of a great circle distance function; fixed the bin range and epsilon comparison in colocation; added a check for no-data to stop scatter plot from crashing bin/tuple mode

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JPSS mods
- provides info report but does not fail if an unneeded file format module is not available
- uses FORMAT environment variable to try to load files that cannot have their format determined from suffix
- addition of jpss_adl format handler in glance.io, which needs adl_blob.py from svn/jpss_adl/trunk/contrib/scripts




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fixed config file link on main report page; added units display to reports if units attribute is present in files

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corrected magnitude direction to UV vector formula; added code to support bin tuple visualizations for complex data (first draft); stubbed in methods for attribute modification and variable creation in file types other than .nc

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corrected loading of h5 missing values; fixed info variable selection crash; invalid pts much more accurately detected and ignored during colocation; set up to plot vector data using config file settings; fixed remote file access for colocation copies

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added code to support data colocation and creation of modified files including colocated data; added support for a filter based on another variable data set (for example filtering winds on QI); quite a bit of refactoring to clean up code and handle longitude/latitude edge cases

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added foundation work for vector data plotting (using quiver); added more work on ipopp visualization; major refactoring of plotting code to simplify and reorganize

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updated h5 loading to figure out variable names in files correctly; also corrected issue with fill value for diffing data that is integer typed

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adding testing code to use fork to control memory use bloat when plotting; changed to getting type of scaled data from loaded offset/scale

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