Where is argument read by Python parse_args? - python

I want to call a Python module from the command line to convert a time in my timezone to UTC time like this:
$ dt-la-utc.py "2017-10-14 12:10:00"
When I execute the module shown below, the convert_la_utc function works correctly if I hard-code the date and time. However, I want to feed it the date and time as input on the command line. But the parse_args function isn't working. If I run the Python debugger and examine the "args" variable, there's nothing in it. What am I doing wrong?
#!/usr/bin/env python
import argparse
import datetime
from pdb import set_trace as debug
import pytz
import sys
def parse_args():
"""Parse arguments."""
parser = argparse.ArgumentParser(description="Convert LA time to UTC time.")
parser.add_argument("dt", help="LA date and time in format: YYYY-MM-DD HH:MM:SS")
args = parser.parse_args()
debug()
return args
def convert_la_utc():
"""Convert time in Los Angeles to UTC time."""
date = '2017-10-12'
time = '20:45:00'
date_time = date + ' ' + time
datetime_format = '%Y-%m-%d %H:%M:%S'
local = pytz.timezone("America/Los_Angeles")
naive = datetime.datetime.strptime(date_time, datetime_format)
local_dt = local.localize(naive, is_dst=None)
utc_dt = local_dt.astimezone(pytz.utc)
print "Datetime in Los Angeles: {0}".format(date_time)
print "UTC equivalent datetime: {0}".format(utc_dt.strftime("%Y-%m-%d %H:%M:%S"))
def main():
args = parse_args()
convert_la_utc()
if __name__ == '__main__':
sys.exit(main())

You need to further retrieve your argument, for example:
def main():
args = parse_args()
dt = args.dt
What parser.parse_args() returns is an argparse.Namespace object - you can verify it by adding print type(args) in your def main(). More explanation can be found here.

Related

Python 3.8 datetime date comparison not work between "internal generated date" and imported date

I'm trying to compare the actual date with externally generated date, always generated from datetime but in another script and saved in a txt file.
This is the code:
import datetime
datin = datetime.datetime.today()
with open('date.txt', 'r') as mydate:
mdate = mydate.read()
datex = datetime.datetime.strptime(mdate, '%d-%m-%Y')
if datin.date == datex.date:
print('=')
else:
print('!=')
print(datin.strftime('%d-%m-%Y'))
print(datex.strftime('%d-%m-%Y'))
this is the txt file:
03-07-2020
(the same date I'm testing the script)
should return = but return !=
What am I doing wrong?
You have a slight error in that you are accessing the method of the date objects instead of calling the method.
You can find this out by trying to print
datin.date versus datin.date()
Here is the corrected code that runs as expected:
import datetime
datin = datetime.datetime.today()
mdate = '03-07-2020'
datex = datetime.datetime.strptime(mdate,"%d-%m-%Y")
print(datin.date())
print(datex.date())
if datin.date() == datex.date():
print("=")
else:
print("!=")
print (datin.strftime("%d-%m-%Y"))
print(datex.strftime("%d-%m-%Y"))

Adding seconds to ISO 8601 datestamp string

I am trying to add seconds to a datestamp string that is received from a json object but the datetime function I am trying to use does not allow strings and wants the date to be separated like: datetime.strftime(2011,11,18). Here is what I have:
import requests
from datetime import datetime
def call():
pay = {'token' : "802ba928cd3ce9acd90595df2853ee2b"}
r = requests.post('http://challenge.code2040.org/api/dating',
params=pay)
response = r.json()
time = response['datestamp']
interval = response['interval']
utc = datetime.strftime(time, '%Y-%m-%dT&H:%M:%S.%fZ')
timestamp = (utc-time).total_seconds()
utc_dt = datetime(time) + timedelta(seconds=timestamp)
print(utc_dt.strftime('%Y-%m-%dT%H:%M:%S.%fZ'))
Is there another way I can add time to a ISO8601 datestamp?

Jira python calculate time

I am trying to calculate the time from the issue is created and until it is resolved. With these fields:
creation_time = issue.fields.created
resolved_time = issue.fields.resolutiondate
Output when I print:
Creation: 2016-06-09T14:37:05.000+0200 Resolved: 2016-06-10T10:53:12.000+0200
Is there anyway I can minus the resolution date and time with the creation date and time to find how much time is spent on a issue?
Parse the date/time strings into a suitable datetime object and then you can use those to do calculations.
This post explains how to parse a date/time string or you can just take a look at the documentation for the strptime() method.
For calculations, there are examples in this post and there's detailed documentation here.
As an example, something like this should be close to a solution:
from datetime import datetime
from datetime import timedelta
createdTime = datetime.strptime('2016-06-09T14:37:05.000+0200', '%Y-%m-%dT%H:%M:%S.%f')
resolvedTime = datetime.strptime('2016-06-10T10:53:12.000+0200', '%Y-%m-%dT%H:%M:%S.%f')
duration = resolvedTime - createdTime
duration will be a timedelta object and you can access duration.days, duration.seconds and duration.microseconds to get its info.
strptime does have as a drawback that it does not support parsing timezones, so you'll have to cut that part of your input first. Alternatively, see this post.
strptime does not support parsing timezones.
This code is working for me
from datetime import datetime
createdTime = datetime.strptime(issue.fields.created.split(".")[0], '%Y-%m-%dT%H:%M:%S')
resolvedTime = datetime.strptime(issue.fields.resolutiondate.split(".")[0], '%Y-%m-%dT%H:%M:%S')
duration = resolvedTime - createdTime
I've write a function which calculates mean, median and variance of the respond times in days. Hope that helps;
import datetime as d
import numpy as np
ymd_create = []
ymd_resdate = []
delta_t = []
class calculate:
def __init__(self):
self.result = 0
def meantime(self, issueobject):
for i in range(0, len(issueobject)):
ymd_create.append(d.datetime(int(issueobject[i].raw[u'fields'][u'created'].split('T')[0].split('-')[0]), int(issueobject[i].raw[u'fields'][u'created'].split('T')[0].split('-')[1]), int(issueobject[i].raw[u'fields']
[u'created'].split('T')[0].split('-')[2]), int(issueobject[i].raw[u'fields'][u'created'].split('T')[1].split(':')[0]), int(issueobject[i].raw[u'fields'][u'created'].split('T')[1].split(':')[1])))
ymd_resdate.append(d.datetime(int(issueobject[i].raw[u'fields'][u'resolutiondate'].split('T')[0].split('-')[0]), int(issueobject[i].raw[u'fields'][u'resolutiondate'].split('T')[0].split('-')[1]), int(issueobject[i].raw[u'fields']
[u'resolutiondate'].split('T')[0].split('-')[2]), int(issueobject[i].raw[u'fields'][u'resolutiondate'].split('T')[1].split(':')[0]), int(issueobject[i].raw[u'fields'][u'resolutiondate'].split('T')[1].split(':')[1])))
delta_t.append((ymd_resdate[i] - ymd_create[i]).days)
self.result = np.mean(np.array(delta_t))
return self.result
def mediantime(self, issueobject):
for i in range(0, len(issueobject)):
ymd_create.append(d.datetime(int(issueobject[i].raw[u'fields'][u'created'].split('T')[0].split('-')[0]), int(issueobject[i].raw[u'fields'][u'created'].split('T')[0].split('-')[1]), int(issueobject[i].raw[u'fields']
[u'created'].split('T')[0].split('-')[2]), int(issueobject[i].raw[u'fields'][u'created'].split('T')[1].split(':')[0]), int(issueobject[i].raw[u'fields'][u'created'].split('T')[1].split(':')[1])))
ymd_resdate.append(d.datetime(int(issueobject[i].raw[u'fields'][u'resolutiondate'].split('T')[0].split('-')[0]), int(issueobject[i].raw[u'fields'][u'resolutiondate'].split('T')[0].split('-')[1]), int(issueobject[i].raw[u'fields']
[u'resolutiondate'].split('T')[0].split('-')[2]), int(issueobject[i].raw[u'fields'][u'resolutiondate'].split('T')[1].split(':')[0]), int(issueobject[i].raw[u'fields'][u'resolutiondate'].split('T')[1].split(':')[1])))
delta_t.append((ymd_resdate[i] - ymd_create[i]).days)
self.result = np.median(np.array(delta_t))
return self.result
def variancetime(self, issueobject):
for i in range(0, len(issueobject)):
ymd_create.append(d.datetime(int(issueobject[i].raw[u'fields'][u'created'].split('T')[0].split('-')[0]), int(issueobject[i].raw[u'fields'][u'created'].split('T')[0].split('-')[1]), int(issueobject[i].raw[u'fields']
[u'created'].split('T')[0].split('-')[2]), int(issueobject[i].raw[u'fields'][u'created'].split('T')[1].split(':')[0]), int(issueobject[i].raw[u'fields'][u'created'].split('T')[1].split(':')[1])))
ymd_resdate.append(d.datetime(int(issueobject[i].raw[u'fields'][u'resolutiondate'].split('T')[0].split('-')[0]), int(issueobject[i].raw[u'fields'][u'resolutiondate'].split('T')[0].split('-')[1]), int(issueobject[i].raw[u'fields']
[u'resolutiondate'].split('T')[0].split('-')[2]), int(issueobject[i].raw[u'fields'][u'resolutiondate'].split('T')[1].split(':')[0]), int(issueobject[i].raw[u'fields'][u'resolutiondate'].split('T')[1].split(':')[1])))
delta_t.append((ymd_resdate[i] - ymd_create[i]).days)
self.result = np.var(np.array(delta_t))
return self.result

rSimple python schedule two timed events

I am having trouble with the following scenario using python schedule module. Essentially I want to run a login event at time A, and then run the action at time B.
The code does not run as the intended behaviour describes and this is where I need help.
import sched
import datetime
today = datetime.datetime.today()
log = today.replace(hour=11, minute=59, second = 0)
action= today.replace(hour=12, minute=0, second = 0)
scheduler = sched.scheduler(datetime.datetime.today(), time.sleep)
def login_event(name):
print 'EVENT:', datetime.datetime.today(), name
def action_event(name):
print 'EVENT:' datetime.datetime.today(),name
print 'START:', time.time()
scheduler.enter(log, login_event, ('Login'))
scheduler.enter(action, login_event, ('Action'))
scheduler.run()
EDIT I have altered the code to the following but it still doesn't seem right in terms of how best to implement this behaviour.
import sched
import datetime
from datetime import timedelta
import datetime
import time
today = datetime.datetime.today()
log = datetime.datetime.now() + timedelta(minutes=1)# today.replace(hour=12, minute=46, second = 0)
action= log + timedelta(minutes=2)
scheduler = sched.scheduler(time.time, time.sleep)
print datetime.datetime.now
def login_event(name):
print 'Login:', datetime.datetime.now(), name
def action_event(name):
print 'Action:', datetime.datetime.now(), name
print 'Start:', datetime.datetime.now()
scheduler.enter(1, 1, login_event, ('first',))
scheduler.enter(60, 1, action_event, ('second',))
scheduler.run()
The following code hasn't been tested but should be work.
I've put your original code into comment so you can see where you got wrong.
You will probably need to refer the doc: https://docs.python.org/2/library/sched.html
import sched, time
import datetime
today = datetime.datetime.today()
log = today.replace(hour=11, minute=59, second = 0)
action= today.replace(hour=12, minute=0, second = 0)
#scheduler = sched.scheduler(datetime.datetime.today(), time.sleep)
#The first argument of sched.scheduler should be a function that return a number.
scheduler = sched.scheduler(time.time, time.sleep)
def login_event(name):
print 'EVENT:', datetime.datetime.today(), name
def action_event(name):
print 'EVENT:', datetime.datetime.today(),name
print 'START:', time.time()
scheduler.enter is used for relative delay. The correct function to use is scheduler.enterabs
You will need a function to convert datetime to POSIX timestamp.
This can be tricky in python 2.x due to timezone issue.
Refer to this question: Convert datetime to Unix timestamp and convert it back in python
Also, the function takes 4 arguments.
#scheduler.enter(log, login_event, ('Login'))
#scheduler.enter(action, login_event, ('Action'))
scheduler.enterabs(timestamp(log), 0, login_event, ('Login'))
scheduler.enterabs(timestamp(action), 0, action_event, ('Action'))
scheduler.run()
https://github.com/dbader/schedule
By following the pattern linked above I was able to create the desired behaviour using a slightly different schedule module
import schedule
import time
def job():
print("I'm working on job one...")
def job2():
print("I'm working on job two..")
schedule.every().day.at("10:30").do(job)
schedule.every().day.at("10:35").do(job2)
while True:
schedule.run_pending()
time.sleep(1)

Unable to pass argument to the python using Optparse

i have written this python program. whenever i run the script using parameters like
python script.py -t It returns me current time in unixtime.
but whenever i try to pass an argument like
python script.py -c 1325058720 It says LMT is not defined. So i removed the LMT from the
LMT = time.strftime("%a, %d %b %Y %H:%M:%S +0000", time.localtime())
Then it just skip my argument and returns the current time in Localtime.
Can someone please help me to pass an argument in the LMT and convert it to Readable time format. I need to pass an argument to it and see the output in the localtime readable format
import optparse
import re
import time
GMT = int(time.time())
AMT = 123456789
LMT = time.strftime("%a, %d %b %Y %H:%M:%S +0000", time.localtime(LMT))
VERBOSE=False
def report(output,cmdtype="UNIX COMMAND:"):
#Notice the global statement allows input from outside of function
if VERBOSE:
print "%s: %s" % (cmdtype, output)
else:
print output
#Function to control option parsing in Python
def controller():
global VERBOSE
p = optparse.OptionParser()
p.add_option('--time', '-t', action="store_true", help='gets current time in epoch')
p.add_option('--nums', '-n', action="store_true", help='gets the some random number')
p.add_option('--conv', '-c', action="store_true", help='convert epoch to readable')
p.add_option('--verbose', '-v',
action = 'store_true',
help='prints verbosely',
default=False)
#Option Handling passes correct parameter to runBash
options, arguments = p.parse_args()
if options.verbose:
VERBOSE=True
if options.time:
value = GMT
report(value, "GMT")
elif options.nums:
value = AMT
report(value, "AMT")
elif options.conv:
value = LMT
report(value, "LMT")
else:
p.print_help()
I was wrong to access the variable outside the function which didn't clicked me.
elif options.conv:
LMT = options.conv
LMT= float(LMT)
LMT = time.strftime("%a, %d %b %Y %H:%M:%S +0000", time.localtime(LMT))
print '%s'% LMT
The parameters you pass in are completely irrelevant. Way before optparse even tries to look at your parameters, this line is executed:
LMT = time.strftime("%a, %d %b %Y %H:%M:%S +0000", time.localtime(LMT))
And as you point out, LMT is undefined, and will raise an error.
I have no idea what you expect LMT to be at that point. time.localtime() converts a number of seconds from epoch to localtime, since you want the current time (if I understand you) you don't need to pass in anything.
So in fact, you first say that:
python script.py -t # It returns me current time in unixtime.
This is wrong, it does not. Try it and you'll see. It gives you a NameError: name 'LMT' is not defined.

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