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Enum “Inheritance”

... In fact all enums must actually inherit from System.Enum. C# allows syntax to change the underlying representation of the enum values which looks like inheritance, but in actuality they still inherit from System.enum. See section 8.5.2 of the CLI spec for the full details. Relevant information f...
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_csv.Error: field larger than field limit (131072)

...e the field_size_limit: import sys import csv csv.field_size_limit(sys.maxsize) sys.maxsize works for Python 2.x and 3.x. sys.maxint would only work with Python 2.x (SO: what-is-sys-maxint-in-python-3) Update As Geoff pointed out, the code above might result in the following error: OverflowErr...
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Why does C# forbid generic attribute types?

This causes a compile-time exception: 7 Answers 7 ...
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How to run a shell script on a Unix console or Mac terminal?

... To run a non-executable sh script, use: sh myscript To run a non-executable bash script, use: bash myscript To start an executable (which is any file with executable permission); you just specify it by its path: /foo/bar /bin/bar ./...
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How can I restore the MySQL root user’s full privileges?

...r. Enter your password At the mysql command line enter: use mysql; Then execute this query: insert into `user` (`Host`, `User`, `Password`, `Select_priv`, `Insert_priv`, `Update_priv`, `Delete_priv`, `Create_priv`, `Drop_priv`, `Reload_priv`, `Shutdown_priv`, `Process_priv`, `File_priv`, `Grant_p...
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Reading a huge .csv file

..."rb") as csvfile: datareader = csv.reader(csvfile) yield next(datareader) # yield the header row count = 0 for row in datareader: if row[3] == criterion: yield row count += 1 elif count: # done w...
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How can I create a self-signed cert for localhost?

...ugh this post is post is tagged for Windows, it is relevant question on OS X that I have not seen answers for elsewhere. Here are steps to create a self-signed cert for localhost on OS X: # Use 'localhost' for the 'Common name' openssl req -x509 -sha256 -nodes -newkey rsa:2048 -days 365 -keyout loc...
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How to take column-slices of dataframe in pandas

... 2017 Answer - pandas 0.20: .ix is deprecated. Use .loc See the deprecation in the docs .loc uses label based indexing to select both rows and columns. The labels being the values of the index or the columns. Slicing with .loc includes the last element....
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Why aren't variables declared in “try” in scope in “catch” or “finally”?

...k are not in scope in the corresponding "catch" or "finally" blocks. For example, the following code does not compile: 28 ...
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Where is JAVA_HOME on macOS Mojave (10.14) to Lion (10.7)?

...your ~/.bash_profile file will set the environment variable accordingly. export JAVA_HOME="$(/usr/libexec/java_home -v 1.6)" or export JAVA_HOME="$(/usr/libexec/java_home -v 1.7)" or export JAVA_HOME="$(/usr/libexec/java_home -v 1.8)" Update: added -v flag based on Jilles van Gurp response. ...