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Is there a “standard” format for command line/shell help text?
...dea of doubling them with each new argument.) Can you think of an example from a standard tool?
– Alois Mahdal
May 15 '13 at 22:46
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Split a string on whitespace in Go?
...rds)) // [one two three four] 4
DEMO: http://play.golang.org/p/et97S90cIH
From the docs:
func Fields(s string) []string
Fields splits the string s around each instance of one or more consecutive white space characters, returning an array of substrings of s or an empty list if s contains only white...
Can we set a Git default to fetch all tags during a remote pull?
... --no-tags:
By default, tags that point at objects that are downloaded from the
remote repository are fetched and stored locally.
If that default statement is not a restriction, then you can also try
git pull --force
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Multiple ModelAdmins/views for same model in Django admin
...y great! Just to add, for Django 1.4.5 I needed to inherit my custom class from admin.ModelAdmin
class MyPostAdmin(admin.ModelAdmin):
def queryset(self, request):
return self.model.objects.filter(id=1)
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Use curly braces to initialize a Set in Python
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From Python 3 documentation (the same holds for python 2.7):
Curly braces or the set() function can be used to create sets. Note:
to create an empty set you have to use set(), not {}; the latter
creates an empty dicti...
Getter and Setter?
...ense of readability.
Performance Every unnecessary function, that results from forcing a getter/setter-like code-architecture in PHP, involves its own memory stack-frame upon invocation and is wasting CPU cycles.
Readability: The codebase incurs bloating code-lines, which impacts code-navigation ...
Convert a python 'type' object to a string
...ith type() when using new-style classes vs old-style (that is, inheritance from object). For a new-style class, type(someObject).__name__ returns the name, and for old-style classes it returns instance.
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View the Task's activity stack
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From the command line, you can use: adb shell dumpsys activity
This asks the activity manager to print a dump of its current state. The first part of that is the complete activity history, organized by task. There is also ...
How can I limit Parallel.ForEach?
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It's not clear to me from documentation - does setting MaxDegreeOfParallelism to 4 (for instance) mean there'll be 4 threads each running 1/4th of the loop iterations (one round of 4 threads dispatched), or does each thread still do one loop iter...
How do I get the row count of a pandas DataFrame?
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Apart from above answers use can use df.axes to get the tuple with row and column indexes and then use len() function:
total_rows=len(df.axes[0])
total_cols=len(df.axes[1])
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