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Replace a string in shell script using a variable
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you can use the shell (bash/ksh).
$ var="12345678abc"
$ replace="test"
$ echo ${var//12345678/$replace}
testabc
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How to deal with SettingWithCopyWarning in Pandas?
...H5390 and GH5597 for background discussion.]
df[df['A'] > 2]['B'] = new_val # new_val not set in df
The warning offers a suggestion to rewrite as follows:
df.loc[df['A'] > 2, 'B'] = new_val
However, this doesn't fit your usage, which is equivalent to:
df = df[df['A'] > 2]
df['B'] = ...
C/C++中的段错误（Segmentation fault） - C/C++ - 清泛网 - 专注C/C++及内核技术
...致等)
例子3：
Code:
#include <stdio.h>
int main(){
char test[1];
printf("%c", test[1000000000]);
return 0;
}
这里是比较极端的例子，但是有时候可能是会出现的，是个明显的数组越界的问题
或者是这个地址是根本就不存在的
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What is the formal difference in Scala between braces and parentheses, and when should they be used?
...e method expects a single parameter. For example:
List(1, 2, 3).reduceLeft{_ + _} // valid, single Function2[Int,Int] parameter
List{1, 2, 3}.reduceLeft(_ + _) // invalid, A* vararg parameter
However, there’s more you need to know to better grasp these rules.
Increased compile checking with pare...
How do disable paging by swiping with finger in ViewPager but still be able to swipe programmaticall
...TLY working solution. Horizontal swipes are handled in some strange way. I tested this with a Drag'n Drop Gridview as part of a ViewPager. When dragging using this solution, dragging from left to right and right to left fails. Personally I find Rajul's approach the best.
– Ton ...
How to perform OR condition in django queryset?
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from django.db.models import Q
User.objects.filter(Q(income__gte=5000) | Q(income__isnull=True))
via Documentation
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jsonify a SQLAlchemy result set in Flask [duplicate]
...u actually haven't executed your query. Try following:
return jsonify(json_list = qryresult.all())
[Edit]: Problem with jsonify is, that usually the objects cannot be jsonified automatically. Even Python's datetime fails ;)
What I have done in the past, is adding an extra property (like serializ...
Flask raises TemplateNotFound error even though template file exists
....py
templates/
home.html
myproject/
mypackage/
__init__.py
templates/
home.html
Alternatively, if you named your templates folder something other than templates and don't want to rename it to the default, you can tell Flask to use that other director...
pip broke. how to fix DistributionNotFound error?
...s problem in my MacBook, the reason is because as @Stephan said, I use easy_install to install pip, and the mixture of both py package manage tools led to the pkg_resources.DistributionNotFound problem.
The resolve is:
easy_install --upgrade pip
Remember: just use one of the above tools to manag...
Reading a binary file with python
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have you tested an verified this works with the fortran generated binary?
– agentp
Dec 13 '17 at 17:14
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