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Pythonic way to check if a file exists? [duplicate]
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It seems to me that all other answers here (so far) fail to address the race-condition that occurs with their proposed solutions.
Any code where you first check for the files existence, and then, a few lines later in your program, you create it...
Generate a random alphanumeric string in Cocoa
I want to call a method, pass it the length and have it generate a random alphanumeric string.
20 Answers
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Origin null is not allowed by Access-Control-Allow-Origin
I have made a small xslt file to create an html output called weather.xsl with code as follows:
7 Answers
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How to configure port for a Spring Boot application
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Actually command line option is --server.port=8090 not -Dserver.port=8090. docs.spring.io/spring-boot/docs/current/reference/html/…
– Opster ES Ninja - Alper
Aug 19 '15 at 6:39
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LinkedBlockingQueue vs ConcurrentLinkedQueue
... for communication between producer and consumer threads would people generally recommend using LinkedBlockingQueue or ConcurrentLinkedQueue ?
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How to discover number of *logical* cores on Mac OS X?
...id-2011 1.7GHz MacBook Air, this command says 4. However, I suspected it really only has 2 cores, and system_profiler SPHardwareDataType seems to agree. Can you explain the discrepancy?
– Joshua Flanagan
Sep 24 '11 at 1:42
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How to access environment variable values?
...os.environ
import os
print(os.environ['HOME'])
Or you can see a list of all the environment variables using:
os.environ
As sometimes you might need to see a complete list!
# using get will return `None` if a key is not present rather than raise a `KeyError`
print(os.environ.get('KEY_THAT_MIGH...
Python: How to get stdout after running os.system? [duplicate]
I want to get the stdout in a variable after running the os.system call.
6 Answers
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How to convert 'binary string' to normal string in Python3?
...requests etc.
– Jmons
Sep 23 '16 at 11:55
I suggest to add the following to complete the answer. Most times we need to...
Retrieving Android API version programmatically
... @Cœur I think building an app retro compatible to Android 1.5 is not really useful nowadays. Just set your project minSdkVersion to 4 (Android 1.6) and go on.
– ol_v_er
Jan 8 '19 at 10:09
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