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Require either of two arguments using argparse
...ot both.
import argparse
parser = argparse.ArgumentParser()
group = parser.add_mutually_exclusive_group(required=True)
group.add_argument('--foo',action=.....)
group.add_argument('--bar',action=.....)
args = parser.parse_args()
BTW, just found another question referring ...
Distinct() with lambda?
...
IEnumerable<Customer> filteredList = originalList
.GroupBy(customer => customer.CustomerId)
.Select(group => group.First());
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Adding a public key to ~/.ssh/authorized_keys does not log me in automatically
...rify the permissions of your home directory to remove write access for the group and others.
chmod go-w ~
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Understanding the Use of ColorMatrix and ColorMatrixColorFilter to Modify a Drawable's Hue
...rGenerator
{
/**
* Creates a HUE ajustment ColorFilter
* @see http://groups.google.com/group/android-developers/browse_thread/thread/9e215c83c3819953
* @see http://gskinner.com/blog/archives/2007/12/colormatrix_cla.html
* @param value degrees to shift the hue.
* @return
*/
public static Co...
Apache .htaccess 禁止访问某目录方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...立，例如：
admin: wwq
editer: lily baty
我将它保存为d:/下的groups文件
使用htpasswd d:/passwords lily(htpasswd d:/passwords groups)为编辑组添加两个用户
修改.htaccess：
AuthType Basic
AuthName "By Invitation Only"
AuthUserFile d:/passwords
AuthGroupFile d:/groups...
How to remove outliers from a dataset
...ay you are done will filter based on data value. If box plot is also doing grouping, not necessarily same data value will be outlier in each group
– adam
Jun 12 '15 at 9:04
2
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Modify Address Bar URL in AJAX App to Match Current State
...imilar technique is used by fb while navigating through pages of different groups. You have a left nav column in which different groups are mentioned. When you click on a particular group name the url changes and only the content of the main content pane changes along with the url(no hash). So when ...
You can't specify target table for update in FROM clause
... e.g., let you include non-aggregated columns in SELECT lists when you use GROUP BY, and MySQL does. I'd argue that MySQL is in the wrong here, and I might say the same of the other DBMSs for UPDATE statements.
– siride
Mar 13 '13 at 20:50
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Difference between MEAN.js and MEAN.io
... that generator-angular-fullstack doesn't
3.7% Dedicated/searchable user group: response time mostly under a day
0.4% Generate routes
0.4% Authentication - Oauth
0.4% config
0.4% i18n, localization
0.4% Input application profile
0.3% FEATURE (a.k.a. module, entity, crud-mock)
0.3% Menus system
0.3...
How do I make many-to-many field optional in Django?
...ManyToMany relation without making it required just use blank=True:
class Group(models.Model):
...
events = models.ManyToManyField(Event, blank=True)
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