Its showing error LookupError: 'base64' is not a text encoding; use
codecs.decode() to handle arbitrary codecs.
Last few lines when the execution stops are - thumbnail =
resize(photo_data, 200, 200) File "/home/anurag/photoshare/app.py", line
406, in resize image_string = StringIO(img.decode('base64')) LookupError:
'base64' is not a text encoding; use codecs.decode() to handle arbitrary
codecs
begin photo uploading codephotos uploaded using base64 encoding so they can
be directly embeded in HTML
ALLOWED_EXTENSIONS = set(['png', 'jpg', 'jpeg', 'gif'])def
allowed_file(filename):``return '.' in filename and filename.rsplit('.', 1)[1]
in
ALLOWED_EXTENSIONS
@app.route('/upload', methods=['GET', 'POST'])@flask_login.login_requireddef
upload_file():if request.method == 'POST':
uid = getUserIdFromEmail(flask_login.current_user.id)
imgfile = request.files['photo']
caption = request.form.get('caption')
album_id = request.form.get('album')
tags = request.form.get('tags')
photo_data = base64.standard_b64encode(imgfile.read())
thumbnail = resize(photo_data, 200, 200)
cursor = conn.cursor()
cursor.execute("INSERT INTO Photos (imgdata, thumbnail, user_id,
caption, album_id) VALUES ('{0}', '{1}', '{2}', '{3}',
'{4}')".format(photo_data, thumbnail, uid, caption, album_id))
conn.commit()
picture_id = cursor.lastrowid
print (picture_id)
print (tags)
insert_tags(picture_id, tags)
return redirect( url_for('get_album', id=album_id))#The method is GET so we
return a HTML form to upload the a photo.else:
return render_template('upload.html', loggedin=True,
albums=get_all_album_data())
end photo uploading coderesizes if greater than (x,y) else returns original
def resize(img, x,y):
image_string = StringIO(img.decode('base64'))with Image.open(image_string) as
image:
if image.size[0] > 200 and image.size[1] > 200:
cover = resizeimage.resize_cover(image, [x,y])
buffer = StringIO()
cover.save(buffer, format="JPEG")
return base64.b64encode(buffer.getvalue())
else:
return img
Then there is another filefor image. from PIL import Image from io import
StringIO from resizeimage import resizeimage import os, base64
def resize(img, x,y):
image_string = StringIO(img.decode('base64'))``with Image.open(image_string) as
image:
if image.size[0] > 200 and image.size[1] > 200:
cover = resizeimage.resize_cover(image, [x,y])
return base64.standard_b64encode(cover)
else:
return img``
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