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How to convert FileInputStream to InputStream? [closed]
...le.. I don't want anything running once I send.. e.g. as if I am sending a string.. so that the other side need not worry about closing anything.
– ranjan
Jun 19 '12 at 12:31
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How to filter rows in pandas by regex
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There is already a string handling function Series.str.startswith().
You should try foo[foo.b.str.startswith('f')].
Result:
a b
1 2 foo
2 3 fat
I think what you expect.
Alternatively you can use contains with regex option....
Find lines from a file which are not present in another file [duplicate]
...e2 would output:
Bill
Bill
In my case, I wanted to know only that every string in file2 existed in file1, regardless of how many times that line occurred in each file.
Solution 1: use the -u (unique) flag to sort:
comm -13 <(sort -u file1) <(sort -u file2)
Solution 2: (the first "working...
What does auto&& tell us?
... deep copy.
This allows you to have something like:
std::vector<std::string> foo();
So:
auto var = foo();
will perform a copy of the returned vector (expensive), but:
auto &&var = foo();
will swap the internal representation of the vector (the vector from foo and the empty v...
How to select the last record of a table in SQL?
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to get the last row of a SQL-Database use this sql string:
SELECT * FROM TableName WHERE id=(SELECT max(id) FROM TableName);
Output:
Last Line of your db!
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improv...
Generating a SHA-256 hash from the Linux command line
I know the string "foobar" generates the SHA-256 hash c3ab8ff13720e8ad9047dd39466b3c8974e592c2fa383d4a3960714caef0c4f2 using
http://hash.online-convert.com/sha256-generator
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Django dynamic model fields
... to end up storing thousands of items in one field. It also only supports strings for values.
#app/models.py
from django.contrib.postgres.fields import HStoreField
class Something(models.Model):
name = models.CharField(max_length=32)
data = models.HStoreField(db_index=True)
In Django's s...
Convert timestamp to readable date/time PHP
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strtotime makes a date string into a timestamp. You want to do the opposite, which is date. The typical mysql date format is date('Y-m-d H:i:s'); Check the manual page for what other letters represent.
If you have a timestamp that you want to u...
How do I start a process from C#?
...tics.Process.Start method to start a process. You can even pass a URL as a string and it'll kick off the default browser.
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getActionBar() returns null
...d:debuggable="false"
android:icon="@drawable/icon"
android:label="@string/app_name"
android:theme="@style/Theme.NoTitle"> // remove this line if you have this in your code
<activity
android:name="com.xxx.yyy.Activity"
android:configChanges="orientation|keyboardHid...