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Replacing Pandas or Numpy Nan with a None to use with MysqlDB
...to use before inserting with Django to avoid the np.nan being converted to string "nan"
– shadi
May 11 '18 at 8:04
Use...
find -exec with multiple commands
...? this is failing: find ./* -exec grep -v 'COLD,' {} \; -exec egrep -i "my_string" {} \;
– rajeev
Jan 22 '13 at 16:08
53
...
Celery Received unregistered task of type (run example)
...
Voted your answer for this string please in other module invoke task!!!!!!!!. It helped.
– VolArt
Jan 14 '19 at 10:47
...
Save image from URL by paperclip
...lightly better than open(url). Because with open(url) you're going to get "stringio.txt" as the filename. With the above you're going to get a proper name of the file based on the URL. i.e.
self.picture = URI.parse("http://something.com/blah/avatar.png")
self.picture_file_name # => "avatar.p...
Postgresql: Scripting psql execution with password
... the following format:
hostname:port:database:username:password Do not add string quotes around your field values. You can also use * as a wildcard for your port/database fields.
You must chmod 0600 ~/.pgpass in order for it to not be silently ignored by psql.
Create an alias in your bash profile th...
How to make good reproducible pandas examples
...search (search the docs, search StackOverflow), give a summary:
The docstring for sum simply states "Compute sum of group values"
The groupby docs don't give any examples for this.
Aside: the answer here is to use df.groupby('A', as_index=False).sum().
if it's relevant that you have Times...
What is WEB-INF used for in a Java EE web application?
...e in Spring you can configure them to be in WEB-INF explicitly:
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/WEB-INF/jsp/"
p:suffix=".jsp" >
</bean>
The WEB-INF/classes and WEB-INF/lib folders mentioned in Wikip...
Draw a perfect circle from user's touch
...;
g.drawOval(cX, cY, cD, cD);
}else{
g.drawString("Uknown",30,50);
}
}
private Type getType(int dx, int dy) {
Type result = Type.UNDEFINED;
if (dx > 0 && dy < 0) {
result = Type.RIGHT_DOWN;
} else if...
How to delete a file via PHP?
.../github.com/luyadev/luya/blob/master/core/helpers/FileHelper.php
* @param string $filename The file path to the file to delete.
* @return boolean Whether the file has been removed or not.
*/
function unlinkFile ( $filename ) {
// try to force symlinks
if ( is_link ($filename) ) {
...
What are the relative strengths and weaknesses of Git, Mercurial, and Bazaar? [closed]
...t, scales very well, and is very transparent about its concepts. The down side of this is that it has a relatively steep learning curve. A Win32 port is available, but not quite a first-class citizen. Git exposes hashes as version numbers to users; this provides guarantees (in that a single hash alw...