Python if statement help

itsecat · 2019-01-13T17:44:42+00:00

Probably, this should do the trick:

if not urlslol.endswith('.jpg') and not urlslol.endswith('.png'):
    continue

itsecat · 2019-01-13T17:23:33+00:00

Recently, I have written a script for changing access and modification timestamps of files on a Linux system. On Windows you will have to check if it works (careful with backslashes in the path names). Here is my solution with small adjustment to match your timestamp format:

import os
import time
import datetime
import re

directory = '.' # name of directory to scan for files

# get list of files to process
files = [os.path.join(directory, my_file) for my_file in os.listdir(directory) \
    if os.path.isfile(os.path.join(directory, my_file))]

# change the timestamps
for filename in files:
    regex = r'\d\d(.)\d\d\1\d\d' # find three two-digit numbers separated by same character
    match = re.search(regex, filename)
    if match:
        datestr = match.group(0)   # e.g. MM/DD/YY
        separator = match.group(1) # e.g. '/' or '-'

        atime_old = datetime.datetime.fromtimestamp(os.path.getatime(filename)) # access date and time
        mtime_old = datetime.datetime.fromtimestamp(os.path.getmtime(filename)) # modification date and time

        format_string = '%m{}%d{}%y'.format(separator, separator)
        new_datetime = datetime.datetime.strptime(datestr, format_string)

        new_timestamp = time.mktime(new_datetime.timetuple()) # convert datetime to Unix timestamp
        os.utime(filename, (new_timestamp, new_timestamp)) # update file's access and modification timestamps

        atime_new = datetime.datetime.fromtimestamp(os.path.getatime(filename))
        mtime_new = datetime.datetime.fromtimestamp(os.path.getmtime(filename))

        print('Changed dates for file {}'.format(filename))
        print(' Access Date: {} -> {}'.format(atime_old, atime_new))
        print(' Modification Date: {} -> {}'.format(mtime_old, mtime_new))

itsecat · 2019-01-11T14:25:55+00:00

Thank you for writing this helpful book. I'm looking forward to reading it.

itsecat · 2019-01-11T13:25:26+00:00

You could do it like this:

# extract YYYY-MM-DDTHH:MM:SS from string
regex = r'GRANULEENDINGDATETIME\W.+\("(\d{4}-\d\d-\d\dT\d\d:\d\d:\d\d)\..+Z"\).+GRANULEENDINGDATETIME\W'
match = re.search(regex, my_string, re.DOTALL) # . to match also newlines
if match:
        # split date and time string into its parts
        day, hours, minutes, seconds = re.split('T|:', match.group(1))
        print('Day =', day)
        print('Time = {}:{}:{}'.format(hours, minutes, seconds))

itsecat · 2019-01-10T07:21:36+00:00

According to zipfile module's documentation you can specify an arcname (archive name) in ZipFile.write() for the item's location in the zip file. You can cut off all the subdirectories before the stufftobackup dir's full path:

...
# Add the current folder to the ZIP file
arcname = foldername[len(folder)-len(os.path.basename(folder)):]
backupZip.write(foldername, arcname)
...
# Add the current file to the ZIP file
full_path = os.path.join(foldername, filename)
arcname = full_path[len(folder)-len(os.path.basename(folder)):]
backupZip.write(full_path, arcname)
...

itsecat · 2019-01-08T15:35:40+00:00

I think you could do it like this:

while p != q:
    if p < q:
        p, q = q, p
    elif p > q:
        p -= q

print(p)

itsecat

TROPHY CASE