What's a good way to compare values in dictionaries? I want to find
values that have changed. I look for new keys by doing this:
new = [k for k in file_info_cur.i terkeys() if k not in
file_info_old.i terkeys()]
if new == []:
print new, "No new files."
else:
print new, "New file(s)!!!"
My key-values pairs are filepaths and their modify times. I want to
identify files that have been updated or added since the script last ran.
Thanks,
rbt
2  8731 
In <dp**********@s olaris.cc.vt.ed u>, rbt wrote: What's a good way to compare values in dictionaries?
Look them up and then compare!? ;-)
I want to find
values that have changed. I look for new keys by doing this:
new = [k for k in file_info_cur.i terkeys() if k not in
file_info_old.i terkeys()]
if new == []:
print new, "No new files."
else:
print new, "New file(s)!!!"
My key-values pairs are filepaths and their modify times. I want to
identify files that have been updated or added since the script last ran.
This looks up each `key` from the `new` dictionary and compares the value
with the `old` one. If it's not equal or the key is not present in `old`
the key is appended to the `result`::
def new_and_changed _keys(old, new):
result = list()
for (key, value) in new:
try:
if old[key] != value:
result.append(k ey)
except KeyError:
result.append(k ey)
return result
Ciao,
Marc 'BlackJack' Rintsch
Marc 'BlackJack' Rintsch wrote: In <dp**********@s olaris.cc.vt.ed u>, rbt wrote:
What's a good way to compare values in dictionaries?
Look them up and then compare!? ;-)
I want to find
values that have changed. I look for new keys by doing this:
new = [k for k in file_info_cur.i terkeys() if k not in
file_info_old.i terkeys()]
if new == []:
print new, "No new files."
else:
print new, "New file(s)!!!"
My key-values pairs are filepaths and their modify times. I want to
identify files that have been updated or added since the script last ran.
This looks up each `key` from the `new` dictionary and compares the value
with the `old` one. If it's not equal or the key is not present in `old`
the key is appended to the `result`::
def new_and_changed _keys(old, new):
result = list()
for (key, value) in new:
try:
if old[key] != value:
result.append(k ey)
except KeyError:
result.append(k ey)
return result
Ciao,
Marc 'BlackJack' Rintsch
Thanks Marc! I changed this line:
for (key, value) in new:
To this:
for (key, value) in new.iteritems() :
And, it works great. Thanks again. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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