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How do I call setattr() on the current module?
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223
import sys
thismodule = sys.modules[__name__]
setattr(thismodule, name, value)
or, without u...
How to redirect output with subprocess in Python?
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UPDATE: os.system is discouraged, albeit still available in Python 3.
Use os.system:
os.system(my_cmd)
If you really want to use subprocess, here's the solution (mostly lifted from the documentation for subprocess):
p = subprocess.Popen(my_cmd, shell=True)
os.waitpid(p.pid, 0)
OTOH,...
Error in : object of type 'closure' is not subsettable
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library(shiny)
reactive_df <- reactive({
data.frame(col1 = c(1,2,3),
col2 = c(4,5,6))
})
While we often work with reactive expressions in shiny as if they were data frames, they are actually functions that return data frames (or other objects).
isolate({
print(reactiv...
`new function()` with lower case “f” in JavaScript
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3 Answers
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How many GCC optimization levels are there?
...n level is specified)
-O1 (optimize minimally)
-O2 (optimize more)
-O3 (optimize even more)
-Ofast (optimize very aggressively to the point of breaking standard compliance)
-Og (Optimize debugging experience. -Og enables optimizations that do not interfere with debugging. It should be t...
What is the difference between assert, expect and should in Chai?
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edited May 23 '17 at 12:10
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answered Jan 28 '14 at 12:01
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Using isKindOfClass with Swift
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answered Jun 14 '14 at 13:29
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Rails ActionMailer - format sender and recipient name/email address
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237
If you are taking user input for name and email, then unless you very carefully validate or esc...
How to select rows from a DataFrame based on column values?
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4135
To select rows whose column value equals a scalar, some_value, use ==:
df.loc[df['column_name'...
Code equivalent to the 'let' keyword in chained LINQ extension method calls
...h = animalName.Length, animalName})
.Where(x=>x.nameLength > 3)
.OrderBy(x=>x.nameLength)
.Select(x=>x.animalName);
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