$ openssl s_client -connect <host:port> -debug -state -cert <path_to_your_cert.pem> -key <path_to_your_key.pem> -CAfile <path_to_your_CA_cert.pem>
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/* | |
#1 always write datetime values into the database as UTC!!! | |
-- Reread that last statement | |
Vertica will store all datetime values as UTC values | |
*/ | |
-- I highly recommend storing an Integer column of the Day Date | |
select TO_CHAR(<% DATA_END_TIME %>::DATE - INTEGER '1', 'YYYYMMDD')::INTEGER AS date_id | |
SELECT CLOCK_TIMESTAMP() "Current Time"; -- return current time | |
SELECT NOW(); -- time since last session connection (or commit;) which may be an older time than now |
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print(Kid.__mro__) | |
# (<class '__main__.Kid'>, <class '__main__.Dad'>, <class '__main__.Mum'>, <class 'object'>) | |
kid = Kid() | |
print(kid.eye_color) | |
# blue | |
print(kid.city) | |
# Amsterdam | |
kid.swim() | |
# I can swim | |
kid.dance() |
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class Dad: | |
def __init__(self): | |
self.eye_color = "blue" | |
self.hair_color = "black" | |
self.city = "Amsterdam" | |
def swim(self): | |
print("I can swim") | |
class Mum: |
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class Kid(Dad, Mum): | |
def __init__(self): | |
Mum.__init__(self) | |
kid = Kid() | |
print(kid.eye_color) | |
# brown |
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from confluent_kafka import Consumer, TopicPartition | |
size = 1000000 | |
consumer = Consumer( | |
{ | |
'bootstrap.servers': 'localhost:9092', | |
'group.id': 'mygroup', | |
'auto.offset.reset': 'earliest', | |
} | |
) |
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from confluent_kafka import Producer | |
from python_kafka import Timer | |
producer = Producer({'bootstrap.servers': 'localhost:9092'}) | |
msg = ('kafkatest' * 20).encode()[:100] | |
size = 1000000 | |
def delivery_report(err, decoded_message, original_message): | |
if err is not None: | |
print(err) |
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class Job: | |
def __init__(self, person_name): | |
self.name = person_name | |
def task(self): | |
print("working") | |
class Teacher(Job): | |
def task(self): | |
print("teach students") |
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class Job: | |
def __init__(self, person_name): | |
self.name = person_name | |
def task(self): | |
print("working") | |
class Teacher(Job): | |
def task(self): | |
print("teach students") |
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class Teacher(Job): | |
def __init__(self, person_name, school): | |
super().__init__(person_name) | |
self.school = school | |
def task(self): | |
print("working") | |
teacher = Teacher2("xiaoxu", "TU delft") | |
print(teacher.school) |
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