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Find all files in a directory with extension .txt in Python
...le is a single filename. Even better would be to change the f to files and then the for loops could become for file in files.
– martineau
Oct 26 '10 at 14:18
47
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Node.js: printing to console without a trailing newline?
...us output function. Will block the process, cast each argument to a string then output to stdout. Does not place newlines after each argument.
An example:
// get total length
var len = parseInt(response.headers['content-length'], 10);
var cur = 0;
// handle the response
response.on('data', func...
Multiline TextView in Android?
...t thought I'd add that if you use :
android:inputType="textMultiLine"
Then the view stops being clickable. I was trying to get multi line textviews in my slide-drawer menu which obviously needs to respond to clicks.
The android:singleLine="false" worked fine though.
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Drop rows with all zeros in pandas data frame
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Replace the zeros with nan and then drop the rows with all entries as nan.
After that replace nan with zeros.
import numpy as np
df = df.replace(0, np.nan)
df = df.dropna(how='all', axis=0)
df = df.replace(np.nan, 0)
...
How to generate random number in Bash?
...your shell script requires more accurate uniform random numbers than that, then by all means use a more complex and proper mechanism.
– Nelson
Sep 24 '14 at 23:48
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How to update a value, given a key in a hashmap?
...xing. With the help of map.get(key) we get the value of corresponding key, then you can update with your requirement. Here I am updating to increment value by 1.
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Are PHP functions case sensitive?
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On the other hand, if you will change the case sensitivity of variables then it will show the error.
Example:
<?php
$a=5;
echo $A;// It will show the error.
?>
Output:
Notice: Undefined variable: A in C:\xampp\htdocs\test.php on line 3
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Socket File “/var/pgsql_socket/.s.PGSQL.5432” Missing In Mountain Lion (OS X Server)
...o fix this issue for about 2 days. On Windows I was using '127.0.0.1', but then I moved my code to production (Debian 7) and had to change it to ''. It is kind of weird that they give such an error message that leads one to believe that the problem might be somewhere else.
– f...
How to read a text file into a list or an array with Python
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if txt files contains strings, then dtype should be specified, so it should be like lines = loadtxt("filename.dat", dtype=str, comments="#", delimiter=",", unpack=False)
– Alex M981
Sep 20 '18 at 10:29
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Delete a single record from Entity Framework?
...can use SingleOrDefault to get a single object matching your criteria, and then pass that to the Remove method of your EF table.
var itemToRemove = Context.Employ.SingleOrDefault(x => x.id == 1); //returns a single item.
if (itemToRemove != null) {
Context.Employ.Remove(itemToRemove);
C...