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What are deferred objects?
...ese are the methods you get when you ask for a promise.
// A promise is a "read-only" version
// fullMethods = "then done fail resolve resolveWith reject rejectWith isResolve isRejected promise cancel".split(" ")
// As you can see it removes resolve/reject so you can't actaully trigger a
// anyth...
Getting realtime output using subprocess
...:
...
buffers aggressively, the variant
while True:
line = p.stdout.readline()
if not line: break
...
does not. Apparently this is a known bug: http://bugs.python.org/issue3907 (The issue is now "Closed" as of Aug 29, 2018)
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Why is using a wild card with a Java import statement bad?
...at I can tell at a glance which class you meant to use, which simply makes reading the code that much easier. If you're just doing a quick one-off thing, there's nothing explicitly wrong, but future maintainers will thank you for your clarity otherwise.
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“’” showing on page instead of “ ' ”
... â, € and ™.
and how can I fix it?
Use UTF-8 instead of CP-1252 to read, write, store, and display the characters.
I have the Content-Type set to UTF-8 in both my <head> tag and my HTTP headers:
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
This only i...
detect key press in python?
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"To avoid depending on X, the Linux parts reads raw device files (/dev/input/input*) but this requries root."
– jrouquie
Aug 6 '18 at 13:39
8
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How to really read text file from classpath in Java
I am trying to read a text file which is set in CLASSPATH system variable. Not a user variable.
18 Answers
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Windows x64编程中寄存器的使用 - C/C++ - 清泛网 - 专注C/C++及内核技术
...t;
LPTSTR lpFileTextW;
WORD wSignature;
DWORD dwReadSize;
hFile = CreateFile(szFileName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
... ...
}
CreateFile() 的参数有 7 个，那么看看 VC 是怎样安排...
warning: Insecure world writable dir /usr/local/bin in PATH, mode 040777
...
You will need to have root access to do this. If you aren't already the administrative user, login as the administrator. Then use 'sudo' to change the permissions:
sudo chmod go-w /usr/local/bin
Obviously, that will mean you can no longer install material in /usr/local/bin except vi...
How to extract one column of a csv file
...Newer versions of csvtool seem to require using - as the input filename to read from stdin.
– Connor Clark
Oct 9 '19 at 1:10
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python-pandas and databases like mysql
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As Wes says, io/sql's read_sql will do it, once you've gotten a database connection using a DBI compatible library. We can look at two short examples using the MySQLdb and cx_Oracle libraries to connect to Oracle and MySQL and query their data di...