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Take the content of a list and append it to another list
... are met
list1.append(line)
if any(True for line in list1 if "string" in line):
list2.extend(list1)
del list1
....
The (True for line in list1 if "string" in line) iterates over list and emits True whenever a match is found. any() uses short-circuit evaluation to retu...
IOCTL Linux device driver [closed]
...vr_version_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return sprintf(buf, "%s\n", DRIVER_RELEASE);
}
static DEVICE_ATTR(version, S_IRUGO, mydrvr_version_show, NULL);
And during driver setup:
device_create_file(dev, &dev_attr_version);
You would then ha...
RandomForestClassifier vs ExtraTreesClassifier in scikit learn
Can anyone explain the difference between the RandomForestClassifier and ExtraTreesClassifier in scikit learn. I've spent a good bit of time reading the paper:
...
Accessing the index in 'for' loops?
... @user12379095 you probably have the data in the wrong type (a string) and you need to convert it to an actual list of numbers instead of a string. That is somewhat off topic here, please delete your comment and flag mine to be deleted as no longer needed when you see this.
...
OpenSSH升级后不能登录的问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
.../centos/RPM-GPG-KEY-CentOS-6
#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/6.7/extras/$basearch/
http://mirrors.aliyuncs.com/centos/$releasever/extras/$basearch/...
Referring to the null object in Python
...Empty()
>>> empty==None
True
But then it also works on the empty string
>>> empty==''
True
And yet
>>> ''==None
False
>>> empty is None
False
Case 2: Using None as a boolean
The following two tests
if value:
# Do something
if not value:
# Do something
...
get string value from UISegmentedControl
...
Objective-C
NSString *title = [segment titleForSegmentAtIndex:segment.selectedSegmentIndex];
Swift:
let title = segment.titleForSegment(at: segment.selectedSegmentIndex)
...
What is cardinality in MySQL?
...m Percona:
CREATE TABLE `antest` (
`i` int(10) unsigned NOT NULL,
`c` char(80) default NULL,
KEY `i` (`i`),
KEY `c` (`c`,`i`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
mysql> select count(distinct c) from antest;
+-------------------+
| count(distinct c) |
+-------------------+
| ...
Reading/writing an INI file
...t more difficult. (I'm looking at you, database "providers" and connection strings.) So INI files are also generally better for non-manual editing, as well.
– jpmc26
Mar 16 '17 at 2:51
...
How to get current date in jquery?
...h months & days being represented by numbers less than 10 (meaning the strings will have one char instead of two). See this jsfiddle for comparison.
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