>>> KV.update(value=KV.value.update({'k2': 'v2', 'k3': 'v3'})).execute() 1 >>> KV.get(KV.key == 'a').value {'k1': 'v1', 'k2': 'v2', 'k3': 'v3'} We can also update existing data atomically, or remove [Row(key='k0', value='v0'), Row(key='k19', value='v19'), Row(key='k2', value='v2'), Row(key='k3', value='v3'), Row(key='k9', value='v9')] Attempting to get a single non-existant key will result in a KeyError KV.update(k2='v2', k3='v3') # Getting values works as you'd expect. assert KV['k2'] == 'v2' # We can also do this: for value in KV[KV.key > 'k1']: print(value) # 'v2' # 'v3' # Update multiple values

>>> KV.update(value=KV.value.update({'k2': 'v2', 'k3': 'v3'})).execute() 1 >>> KV.get(KV.key == 'a').value {'k1': 'v1', 'k2': 'v2', 'k3': 'v3'} We can also update existing data atomically, or remove [Row(key='k0', value='v0'), Row(key='k19', value='v19'), Row(key='k2', value='v2'), Row(key='k3', value='v3'), Row(key='k9', value='v9')] Attempting to get a single non-existant key will result in a KeyError the value for "k1". KV['k1'] = 'v1' # Set (or update) multiple keys at once. KV.update(k2='v2', k3='v3') # Getting values works as you'd expect. assert KV['k2'] == 'v2' # We can also do this: for value

[Row(key='k0', value='v0'), Row(key='k19', value='v19'), Row(key='k2', value='v2'), Row(key='k3', value='v3'), Row(key='k9', value='v9')] Attempting to get a single non-existant key will result in a KeyError KV.update(k2='v2', k3='v3') # Getting values works as you'd expect. assert KV['k2'] == 'v2' # We can also do this: for value in KV[KV.key > 'k1']: print(value) # 'v2' # 'v3' # Update multiple values KV = KeyValue() >>> KV.update(k1='v1', k2='v2', k3='v3') >>> KV['k1'] 'v1' >>> KV['kx'] KeyError: "kx" not found >>> KV[KV.key > 'k1'] ['v2', 'v3'] >>> KV[KV.key < 'k1'] [] __setitem__(expr, value)

[Row(key='k0', value='v0'), Row(key='k19', value='v19'), Row(key='k2', value='v2'), Row(key='k3', value='v3'), Row(key='k9', value='v9')] Attempting to get a single non-existant key will result in a KeyError KV.update(k2='v2', k3='v3') # Getting values works as you'd expect. assert KV['k2'] == 'v2' # We can also do this: for value in KV[KV.key > 'k1']: print(value) # 'v2' # 'v3' # Update multiple values KV = KeyValue() >>> KV.update(k1='v1', k2='v2', k3='v3') >>> KV['k1'] 'v1' >>> KV['kx'] KeyError: "kx" not found >>> KV[KV.key > 'k1'] ['v2', 'v3'] >>> KV[KV.key < 'k1'] [] __setitem__(expr, value)

(continued from previous page) Row(key='k19', value='v19'), Row(key='k2', value='v2'), Row(key='k3', value='v3'), Row(key='k9', value='v9')] Attempting to get a single non-existant key will result in a KeyError the value for "k1". KV['k1'] = 'v1' # Set (or update) multiple keys at once. KV.update(k2='v2', k3='v3') # Getting values works as you'd expect. assert KV['k2'] == 'v2' # We can also do this: for value extensions to Peewee 213 peewee Documentation, Release 3.5.0 (continued from previous page) # 'v3' # Update multiple values at once using expression: KV[KV.key > 'k1'] = 'vx' # What's stored in the

[Row(key='k0', value='v0'), Row(key='k19', value='v19'), Row(key='k2', value='v2'), Row(key='k3', value='v3'), Row(key='k9', value='v9')] Attempting to get a single non-existant key will result in a KeyError KV.update(k2='v2', k3='v3') # Getting values works as you'd expect. assert KV['k2'] == 'v2' # We can also do this: for value in KV[KV.key > 'k1']: print(value) # 'v2' # 'v3' # Update multiple values KV = KeyValue() >>> KV.update(k1='v1', k2='v2', k3='v3') >>> KV['k1'] 'v1' >>> KV['kx'] KeyError: "kx" not found >>> KV[KV.key > 'k1'] ['v2', 'v3'] >>> KV[KV.key < 'k1'] [] __setitem__(expr, value)

[Row(key='k0', value='v0'), Row(key='k19', value='v19'), Row(key='k2', value='v2'), Row(key='k3', value='v3'), Row(key='k9', value='v9')] Attempting to get a single non-existant key will result in a KeyError KV.update(k2='v2', k3='v3') # Getting values works as you'd expect. assert KV['k2'] == 'v2' # We can also do this: for value in KV[KV.key > 'k1']: print(value) # 'v2' # 'v3' # Update multiple values KV = KeyValue() >>> KV.update(k1='v1', k2='v2', k3='v3') >>> KV['k1'] 'v1' >>> KV['kx'] KeyError: "kx" not found >>> KV[KV.key > 'k1'] ['v2', 'v3'] >>> KV[KV.key < 'k1'] [] __setitem__(expr, value)

[Row(key='k0', value='v0'), Row(key='k19', value='v19'), Row(key='k2', value='v2'), Row(key='k3', value='v3'), Row(key='k9', value='v9')] Attempting to get a single non-existant key will result in a KeyError

[Row(key='k0', value='v0'), Row(key='k19', value='v19'), Row(key='k2', value='v2'), Row(key='k3', value='v3'), Row(key='k9', value='v9')] Attempting to get a single non-existant key will result in a KeyError