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How to overcome TypeError: unhashable type: 'list'
...ue = [x.strip() for x in line]
key = line[0].strip()
value = line[1].strip()
# Now we check if the dictionary contains the key; if so, append the new value,
# and if not, make a new list that contains the current value
# (For future reference, this is a great place for a default...
Turn Pandas Multi-Index into column
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197
The reset_index() is a pandas DataFrame method that will transfer index values into the DataFr...
How to add extra namespaces to Razor pages instead of @using declaration?
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163
Update: please take a look at my updated answer that applies to MVC 3 RC: Razor HtmlHelper Ext...
how do I make a single legend for many subplots with matplotlib?
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175
There is also a nice function get_legend_handles_labels() you can call on the last axis (if yo...
Accessing class variables from a list comprehension in the class definition
...lowing will fail:
class A:
a = 42
b = list(a + i for i in range(10))
So, to summarize: you cannot access the class scope from functions, list comprehensions or generator expressions enclosed in that scope; they act as if that scope does not exist. In Python 2, list comprehensions were ...
promise already under evaluation: recursive default argument reference or earlier problems?
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164
Formal arguments of the form x=x cause this. Eliminating the two instances where they occur w...
How do SO_REUSEADDR and SO_REUSEPORT differ?
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1680
+100
Welco...
常用Linux命令详解（持续更新） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...netstat等。一、注销，关机，重启，新建用户、删除用户
1. 注销系统的命令
logout 、exit
这两个命令都可以用来退出当前所登录的服务器，若想再次进入服务器需要重新输入用户名和密码
2．关机或重新启动的命令
shutdown
用来...
Google Maps: how to get country, state/province/region, city given a lat/long value?
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136
What you are looking for is called reverse geocoding. Google provides a server-side reverse ge...
Why must a nonlinear activation function be used in a backpropagation neural network? [closed]
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