Python: Difference between revisions
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==Regular Expressions (Regex)== | ==Regular Expressions (Regex)== | ||
[https://docs.python.org/3/howto/regex.html Reference]<br> | [https://docs.python.org/3/howto/regex.html Reference]<br> | ||
<syntaxhighlight lang="python"> | |||
import re | |||
myReg = re.compile(r'height:(\d+)cm') | |||
myMatch = re.match(myReg, "height:33cm"); | |||
print(myMatch[1]) | |||
# 33 | |||
</syntaxhighlight> | |||
=Libraries= | =Libraries= | ||
==Numpy== | ==Numpy== |
Revision as of 19:15, 23 September 2019
Installation
Use Anaconda.
Basic Usage
Lambda Function
lambda x: x * 2
Filesystem Read and Write
List all files in a folder
gazeDir = "Gaze_txt_files"
# List of folders in root folder
gazeFolders = [path.join(gazeDir, x) for x in os.listdir(gazeDir)]
# List of files 2 folders down
gazeFiles = [path.join(x, y) for x in gazeFolders for y in os.listdir(x)]
Read entire text file into a list
with open('C:/path/numbers.txt') as f:
lines = f.read().splitlines()
Regular Expressions (Regex)
import re
myReg = re.compile(r'height:(\d+)cm')
myMatch = re.match(myReg, "height:33cm");
print(myMatch[1])
# 33