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Display image as grayscale using matplotlib

...If you want to display the inverse grayscale, switch the cmap to cmap='gray_r'. share | improve this answer | follow | ...
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You can't specify target table for update in FROM clause

... absolutely fine. DELETE FROM t WHERE tableID NOT IN (SELECT viewID FROM t_view); Also I recommend running OPTIMIZE TABLE t; afterwards to reduce the size of the table. – CodeX Oct 13 '16 at 11:36 ...
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Convert file path to a file URI?

...|| v == '+' || v == '/' || v == ':' || v == '.' || v == '-' || v == '_' || v == '~' || v > '\xFF') { uri.Append(v); } else if (v == Path.DirectorySeparatorChar || v == Path.AltDirectorySeparatorChar) { uri.Append('/'); } else { uri.Append(...
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AttributeError: 'datetime' module has no attribute 'strptime'

... Reminds of the town Colombia in Colombia: en.wikipedia.org/wiki/Colombia,_Huila – sindri_baldur May 22 '19 at 10:04 add a comment  |  ...
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Build.scala, % and %% symbols meaning

...ithout the %%: val appDependencies = Seq( "org.scala-tools" % "scala-stm_2.9.1" % "0.3" ) Assuming the scalaVersion for your build is 2.9.1, the following is identical: val appDependencies = Seq( "org.scala-tools" %% "scala-stm" % "0.3" ) As you can see above, if you use %%, you don't...
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Cannot open database “test” requested by the login. The login failed. Login failed for user 'xyz\ASP

...answered Apr 4 '10 at 21:16 marc_smarc_s 650k146146 gold badges12251225 silver badges13551355 bronze badges ...
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Error “gnu/stubs-32.h: No such file or directory” while compiling Nachos source code

...e files in a non standard location. You'll also need to do: export LIBRARY_PATH=/usr/lib/$(gcc -print-multiarch) export C_INCLUDE_PATH=/usr/include/$(gcc -print-multiarch) export CPLUS_INCLUDE_PATH=/usr/include/$(gcc -print-multiarch) somewhere before you build (say in your .bashrc). If you ar...
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how to change directory using Windows command line

...a popd: C:\Temp>pushd D:\some\folder D:\some\folder>popd C:\Temp>_ share | improve this answer | follow | ...
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Referencing another schema in Mongoose

...you make your query, you can populate references like this: Post.findOne({_id: 123}) .populate('postedBy') .exec(function(err, post) { // do stuff with post }); share | improve this answer ...
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How to “log in” to a website using Python's Requests module?

...xt is closed after use. with requests.Session() as s: p = s.post('LOGIN_URL', data=payload) # print the html returned or something more intelligent to see if it's a successful login page. print p.text # An authorised request. r = s.get('A protected web page url') print r.tex...