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What is the difference between a string and a byte string?
...t;> b'hi' + 'bye' # this will fail
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: can't concat str to bytes
>>> 'hi' + b'bye' # this will also fail
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeEr...
How to run Unix shell script from Java code?
...THERVAR");
env.put("VAR2", env.get("VAR1") + "suffix");
pb.directory(new File("myDir"));
Process p = pb.start();
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JSON to pandas DataFrame
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Check this snip out.
# reading the JSON data using json.load()
file = 'data.json'
with open(file) as train_file:
dict_train = json.load(train_file)
# converting json dataset from dictionary to dataframe
train = pd.DataFrame.from_dict(dict_train, orient='index')
train.reset_index(lev...
Chmod recursively
...nd I want to automatically, after I download it, to change a branch of the file system within the extracted files to gain read access. (I can't change how archive is created).
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How to write a cron that will run a script every day at midnight?
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export EDITOR=vim
crontab -e
Make scripts executable with chmod a+x <file>
create a script/program as a cron job, and add it to the system's anacron /etc/cron.*ly directories
anacron /etc/cron.*ly directories:
/etc/cron.daily
/etc/cron.hourly
/etc/cron.monthly
/etc/cron.weekly
as ...
Android Studio inline compiler showing red errors, but compilation with gradle works fine
...ing me on the right track here.
Diagnosis
The Sync Project with Gradle Files option in Android Studio seems to keep the Project Structure libraries up to date.
However, in my case there were some errors:
Expanding the (not very obvious) link showed the detail. My wire-runtime library was ...
Error in strings.xml file in Android
...editing strings.xml and not values.xml (android studio directs you to this file when shows the error). Because if you edit values.xml and try to compile again, the error persists. This was happening to me recently.
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Start two instances of IntelliJ IDE
...own folders for config/plugins/system locations by editing idea.properties file on Windows/Linux and Info.plist on Mac. You can find the details in FAQ.
Note that normally it's not necessary since you can open multiple projects in different IDEA frames within the same instance using File | Open or ...
Font Awesome not working, icons showing as squares
...rototype a marketing page and I'm using Bootstrap and the new Font Awesome file. The problem is that when I try to use an icon, all that gets rendered on the page is a big square.
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Enabling auto layout in iOS 6 while remaining backwards compatible with iOS 5
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Autolayout can be enabled or disabled on each .storyboard or .xib file. Just select the particular file and modify the "Use Autolayout" property using the File inspector in Xcode:
Using autolayout enabled interface files with the deployment target set to an iOS version prior to 6.0 resul...