rename files to match their EXIF “Date Taken”?

[JaredPilbeam2]

I need some help putting the date in the filenames. Here's the working code I have so far. 

import arcpy, sys
import exifread
from exifread import exif
import os
import time
from datetime import datetime

im = r"path\to\DOT_SignInventory"

for root, dirnames, filenames in os.walk(im): #iterate directory
    for fname in filenames:
        if fname.endswith('.JPG'):
            with open(os.path.join(root, fname), 'rb') as image: #file path and name
                exif = exifread.process_file(image)
                dt = str(exif['EXIF DateTimeOriginal']) #get 'Date Taken' from JPG
                ds = time.strptime(dt, '%Y:%m:%d %H:%M:%S')
                nt = time.strftime("%m/%d/%Y",ds)#variable with 'Date Taken'
                print("Photo:{} Date Taken:{}".format(fname, "_" + nt))‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

I've tried these couple things after the print statement, but no cigar:

new_file = fname + nt + ".jpg"‍‍

f = open(fname.format(nt), "w")
f.write(fname + nt)
f.close‍‍‍‍‍‍

[RandyBurton]

Here's a snippet that shows some options:

jpg = 'file.jpg'
fn = jpg.split('.')[0] # first part of jpg name by splitting on dot
print fn
# file

exif = '2018:06:05 13:49:40' # date/time from exif data
exifdt = exif.replace(':','-').replace(' ','_') # replace colons and space
print exifdt
# 2018-06-05_13-49-40

newname = fn+"_"+exifdt+".jpg"
print newname
# file_2018-06-05_13-49-40.jpg‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

You could split the exif data on the space to remove the time.  However, including time may be useful in preventing duplicate file names.  Also, I like dates in the year-month-day format as it helps sorting, but that is a personal preference.

Hope this helps.

[RandyBurton]

And to do the actual renaming, try something like

os.rename(os.path.join(root,fname), os.path.join(root,newname))‍

[JaredPilbeam2]

Randy,

I tried:

newname = fname[0:7] + "_" + nt + ".jpg"
os.rename(os.path.join(root,fname), os.path.join(root,newname))‍‍

Even within the with loop it's throwing a Permission Error:

PermissionError: [WinError 32] The process cannot access the file 
because it is being used by another process:
'path\\to\\DOT_SignInventory\\CH01\\0100010.JPG' -> 
'path\\to\\DOT_SignInventory\\CH01\\0100010_04/27/2018.jpg'‍‍‍‍‍‍‍‍‍‍‍‍‍‍

[RandyBurton]

You need to change the slashes in the date to either dashes or underscore. Slashes are used to separate directories in the path, so they cannot be used in a file name.

# change this
nt = time.strftime("%m/%d/%Y",ds)#variable with 'Date Taken'

# to
nt = time.strftime("%m-%d-%Y",ds)

# or
nt = time.strftime("%m_%d_%Y",ds)‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

[JaredPilbeam2]

Tried both options, and also tried '%Y%m%d'. Still throwing the PermissionError. Here's what I have:

import arcpy, sys
import exifread
from exifread import exif
import os
import time
from datetime import datetime

im = "path\to\DOT_SignInventory"

for root, dirnames, filenames in os.walk(im): #iterate directory
    for fname in filenames:
        if fname.endswith('.JPG'):
            with open(os.path.join(root, fname), 'rb') as image: #file path and name
                exif = exifread.process_file(image)
                dt = str(exif['EXIF DateTimeOriginal']) #get 'Date Taken' from JPG
                ds = time.strptime(dt, '%Y:%m:%d %H:%M:%S')
                nt = time.strftime("%Y-%m-%d",ds)
                newname = fname[0:7] + "_" + nt + ".jpg"
                os.rename(os.path.join(root,fname), newname)‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

[RandyBurton · Accepted solution]

You will also need to close the file before renaming it.  Perhaps:

for root, dirnames, filenames in os.walk(im): #iterate directory
    for fname in filenames:
        if fname.endswith('.JPG'):
            with open(os.path.join(root, fname), 'rb') as image: #file path and name
                exif = exifread.process_file(image)
                dt = str(exif['EXIF DateTimeOriginal']) #get 'Date Taken' from JPG
                ds = time.strptime(dt, '%Y:%m:%d %H:%M:%S')
                nt = time.strftime("%Y-%m-%d",ds)
                newname = fname[0:7] + "_" + nt + ".jpg"
            image.close()
            os.rename(os.path.join(root,fname), os.path.join(root,newname))‍‍‍‍‍‍‍‍‍‍‍

[JaredPilbeam2]

Thanks a lot! I did put the image.close() line in at one point. But, I didn't dedent it as you have. I also never dedented os.rename().