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How to copy files from 'assets' folder to sdcard?
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@rciovati got this runtime error Failed to copy asset file: myfile.txt java.io.FileNotFoundException: myfile.txt at android.content.res.AssetManager.openAsset(Native Method)
– likejudo
May 1 '14 at 16:22
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In a Django form, how do I make a field readonly (or disabled) so that it cannot be edited?
...led=True will cause the model to be spat back to the user with validation errors.
– Ben
Jan 11 '18 at 21:55
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Multiple variables in a 'with' statement?
...tatement now supports this
functionality directly (without the confusing error prone quirks).
See Rafał Dowgird's answer for more information.
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I want to exception handle 'list index out of range.'
...g the exception is the way to go:
try:
gotdata = dlist[1]
except IndexError:
gotdata = 'null'
Of course you could also check the len() of dlist; but handling the exception is more intuitive.
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file_put_contents - failed to open stream: Permission denied
...se a shared linux hosting, when my admin changed the php to 5.3 I got many error for the "file_put_contents" code. try to test my plan:
In your host create a file like mytest.php, and put this code in and save:
<?php mail('Your-EMail','Email-Title','Email-Message'); ?>
Open t...
Xcode “Build and Archive” from command line
...-o "${ipa_path}" must be an absolute path. Otherwise you will probably get error: Unable to create '.../...ipa' or it will be silently ignored creating. Damn it wasted me a couple of hours.
– h--n
Dec 12 '11 at 10:47
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Renaming columns in pandas
...x x
1 x x x x x
2 x x x x x
From v0.25, you can also specify errors='raise' to raise errors if an invalid column-to-rename is specified. See v0.25 rename() docs.
REASSIGN COLUMN HEADERS
Use df.set_axis() with axis=1 and inplace=False (to return a copy).
df2 = df.set_axis(['V', 'W', 'X...
Warning: push.default is unset; its implicit value is changing in Git 2.0
...ure is that I was running Git 1.8 on OS X Mountain Lion and never saw this error. Upgrading to Mavericks is what suddenly made it show up (running git --version will show git version 1.8.3.4 (Apple Git-47) which I'd never seen until the update to the OS.
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What's the difference between ViewData and ViewBag?
...ke the most out of it. If you don't like it or feel like its more prone to errors, simply don't use it. :)
– Bilal Fazlani
Mar 15 '15 at 9:19
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In Scala, what exactly does 'val a: A = _' (underscore) mean?
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val a: A = _ is a compile error. For example:
scala> val a: String = _
<console>:1: error: unbound placeholder parameter
val a: String = _
^
What does work is var a: A = _ (note var instead of val). As Chuck s...