This question is quite related to Compute uniswap pair address via python
I am trying to do the same but for panckage swap v2.
I am using the CAKE/WBNB pair as an example:
CONTRACTS = {
"CAKE": "0x0E09FaBB73Bd3Ade0a17ECC321fD13a19e81cE82",
}
PANCAKE_SWAP_FACTORY = "0xcA143Ce32Fe78f1f7019d7d551a6402fC5350c73"
PANCAKE_SWAP_ROUTER = "0x10ED43C718714eb63d5aA57B78B54704E256024E"
WBNB_ADDRESS = "0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c"
hexadem_ ='0x00fb7f630766e6a796048ea87d01acd3068e8ff67d078148a3fa3f4a84f69bd5'
factory = PANCAKE_SWAP_FACTORY
abiEncoded_1 = encode_abi_packed(['address', 'address'], (CONTRACTS['CAKE'], WBNB_ADDRESS))
salt_ = pancakeswap.w3.solidityKeccak(['bytes'], ['0x' +abiEncoded_1.hex()])
abiEncoded_2 = encode_abi_packed([ 'address', 'bytes32'], ( factory, salt_))
resPair = pancakeswap.w3.solidityKeccak(['bytes','bytes'], ['0xff' + abiEncoded_2.hex(), hexadem_])[12:]
# resPair is the address for the pancakeswap CAKE/WBNB pair
print(resPair.hex())
print('0xA527a61703D82139F8a06Bc30097cC9CAA2df5A6')
print(resPair.hex() == '0xA527a61703D82139F8a06Bc30097cC9CAA2df5A6')
print()
My first problem is the code is not working, it is not producint the correct contract address, in fact it prints:
0x0ed7e52944161450477ee417de9cd3a859b14fd0
0xA527a61703D82139F8a06Bc30097cC9CAA2df5A6
False
I think the problem is the value of the constant hexadem_, which can be found in:
hexadem_ = '0xd0d4c4cd0848c93cb4fd1f498d7013ee6bfb25783ea21593d5834f5d250ece66' # from https://github.com/pancakeswap/pancake-swap-periphery/blob/master/contracts/libraries/PancakeLibrary.sol
hexadem_ ='0x96e8ac4277198ff8b6f785478aa9a39f403cb768dd02cbee326c3e7da348845f' # from uniswap (most likely wrong...)
hexadem_ ='0x00fb7f630766e6a796048ea87d01acd3068e8ff67d078148a3fa3f4a84f69bd5' # from https://bscscan.com/address/0x10ED43C718714eb63d5aA57B78B54704E256024E#code line 298
The address you obtained is correct. The address that you are attempting to match to is for pancake V1.
You can see this by clicking on "contract creator" for the 2 addresses, and you will see the pancake factory versions for 0x0ed7e52944161450477ee417de9cd3a859b14fd0 and 0xA527a61703D82139F8a06Bc30097cC9CAA2df5A6.
Related
I stucked a little bit with a problem how to compute
new uniswap`s version 3 pool (earlier versions it called pair)
address based on 1 and 2
In the new uniswap v3.0 there is also one additional parameter
for computing pool address - fees amount in percents, defined like in sdk
with uint24 type.
From sdk`s computePoolAddress at the first times settled
with computing pool address problem there was one confused me part of the source
[defaultAbiCoder.encode(['address', 'address', 'uint24'], [token0.address, token1.address, fee])
And somewhy I decided to compute it using encodePacked (i.e. encode_abi_packed for python3 from eth_abi.packed) function. But it produced wrong result.
Look deeper in the uniswap v3.0 periphery pool conract - 3 clarified
my mistake. It turns out in version 3.0 using encode (i.e. encode_abi for python3 from eth_abi) function. A little bit more explanations here
So, coupled all together.
Main function to compute pool address with the aids of python3.
from web3 import Web3
from eth_abi.packed import encode_abi_packed
from eth_abi import encode_abi
def compute_pairs_address_with_target_v3(factory = '0x1F98431c8aD98523631AE4a59f267346ea31F984', token_0 = None, token_1 = None, fee = 3000):
POOL_INIT_CODE_HASH = '0xe34f199b19b2b4f47f68442619d555527d244f78a3297ea89325f843f87b8b54'
token_0 = Web3.toChecksumAddress(token_0)
token_1 = Web3.toChecksumAddress(token_1)
abiEncoded_1 = encode_abi(['address', 'address', 'uint24'], (token_0, token_1, fee )) if int(token_0,16)<int(token_1,16) else encode_abi(['address', 'address', 'uint24'], (token_1, token_0, fee ))
salt = Web3.solidityKeccak(['bytes'], ['0x' +abiEncoded_1.hex()])
abiEncoded_2 = encode_abi_packed([ 'address', 'bytes32'], ( factory, salt))
resPair = Web3.solidityKeccak(['bytes','bytes'], ['0xff' + abiEncoded_2.hex(), POOL_INIT_CODE_HASH])[12:]
return(resPair.hex())
Testing it, based on 4 and 5
factoryAddress = '0x1111111111111111111111111111111111111111'
token0 = '0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48'
token1 = '0x6B175474E89094C44Da98b954EedeAC495271d0F'
fee = 500 #https://docs.uniswap.org/sdk/reference/enums/FeeAmount#low
targetPoolAddress = '0x90B1b09A9715CaDbFD9331b3A7652B24BfBEfD32'
assert(targetPoolAddress.lower() == compute_pairs_address_with_target_v3(factory = factoryAddress, token_0 = token0, token_1 = token1, fee = fee).lower())
token0 = '0x7d1afa7b718fb893db30a3abc0cfc608aacfebb0'
token1 = '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2'
factoryAddress = '0x1F98431c8aD98523631AE4a59f267346ea31F984'
fee = 3000 #https://docs.uniswap.org/sdk/reference/enums/FeeAmount#medium
targetPoolAddress = '0x290a6a7460b308ee3f19023d2d00de604bcf5b42' #WETH /MATIC 0.3 % fee
assert(targetPoolAddress.lower() == compute_pairs_address_with_target_v3(factory = factoryAddress, token_0 = token0, token_1 = token1, fee = fee).lower())
I'm working with the ipaddress module in Python and trying to figure out a way of calculating the next available subnet (of either the same prefix or a different prefix) that doesn't overlap the existing subnet (the new subnet MUST be greater than the old one).
Lets say I start with network:
from ipaddress import IPv4Network
# From 10.90.1.0 to 10.90.1.31
main_net = IPv4Network("10.90.1.0/27")
I know the next available address is going to be 10.90.1.32, I can even figure this out quite easily by doing:
next_ip = main_net.broadcast_address + 1
# will output 10.90.1.32
print(next_ip)
If I wanted to find the next /27, I just create a new network like so:
# From 10.90.1.32 to 10.90.1.63
new_net = IPv4Network(f"{next_ip}/27")
This is all very straightforward so far, but now what if the next subnet I am looking for is a /26 or a /28 - how can I find the next minimum start IP address for either of these cases in Python?
I have explored using the supernet method, for example I could do something like this:
# Will print 10.90.1.0/26
print(main_net.supernet(new_prefix=27))
The problem with this method is that it will print 10.90.1.0/26 which overlaps the existing 10.90.1.0/27 network, I could make a loop and get it to keep generated the next /26 until they stop overlapping, but it seems inefficient to me. Surely, there is a better way?
Thanks to the help of Ron Maupin's helpful comment leading to a useful guide, I have managed to make a function that does this. I still want to test it a bit more but believe it is correct:
def calculate_next_ip_network(ip_bytes, current_prefix, next_prefix):
next_prefix_mask = (~((1 << (32 - next_prefix)) - 1)) & 0xFFFFFFFF
if next_prefix <= current_prefix:
bit_shift = 32 - next_prefix
else:
bit_shift = 32 - current_prefix
new_ip = (((next_prefix_mask & ip_bytes) >> bit_shift) + 1) << bit_shift
return bytes([new_ip >> i & 0xFF for i in (24, 16, 8, 0)])
Usage:
nt = IPv4Network("10.90.1.56/29")
current_prefix = nt.prefixlen
next_prefix = 25
ip_bytes = int.from_bytes(nt.network_address.packed, byteorder="big")
next_ip = calculate_next_ip_network(ip_bytes, current_prefix, next_prefix)
print(IPv4Address(next_ip))
# Should print "10.90.1.128"
def get_instance_id_from_pip(self, pip):
subscription_id="69ff3a41-a66a-4d31-8c7d-9a1ef44595c3"
compute_client = ComputeManagementClient(self.credentials, subscription_id)
network_client = NetworkManagementClient(self.credentials, subscription_id)
print("Get all public IP")
for public_ip in network_client.public_ip_addresses.list_all():
if public_ip.ip_address == pip:
print(public_ip)
# Get id
pip_id= public_ip.id.split('/')
print("pip id : {}".format(pip_id))
rg_from_pip = pip_id[4].lower()
print("RG : {}".format(rg_from_pip))
pip_name = pip_id[-1]
print("pip name : {}".format(pip_name))
for vm in compute_client.virtual_machines.list_all():
vm_id = vm.id.split('/')
#print("vm ref id: {}".format(vm_id))
rg_from_vm = vm_id[4].lower()
if rg_from_pip == rg_from_vm:
## this is the VM in the same rg as pip
for ni_reference in vm.network_profile.network_interfaces:
ni_reference = ni_reference.id.split('/')
ni_name = ni_reference[8]
print("ni reference: {}".format(ni_reference))
net_interface = network_client.network_interfaces.get(rg_from_pip, ni_name)
print("net interface ref {}".format(net_interface))
public_ip_reference = net_interface.ip_configurations[0].public_ip_address
if public_ip_reference:
public_ip_reference = public_ip_reference.id.split('/')
ip_group = public_ip_reference[4]
ip_name = public_ip_reference[8]
print("IP group {}, IP name {}".format(ip_group, ip_name))
if ip_name == pip_name:
print("Thank god. Finallly !!!!")
print("VM ID :-> {}".format(vm.id))
return vm.id
I have above code to get the VM instance ID from Public ip but its not working. What is real surprising is that for all instances, I am getting x.public_ip_address.ip_address as None value.
I had multiple readthedocs references for python SDK of Azure. but, some how all links not working. Good job Azure :)
Some of them:
https://azure-sdk-for-python.readthedocs.io/en/v1.0.3/resourcemanagementcomputenetwork.html
https://azure-storage.readthedocs.io/en/latest/ref/azure.storage.file.fileservice.html
Second edit:
I got the answer to this and above code will return vm id given the public ip address. Though, you can see it is not absolutely optimized answer. Hence, better answers are welcome. Thanks!
Docs have moved here:
https://learn.microsoft.com/python/azure/
We made some redirection, but unfortunately it's not possible to go global redirection on RTD, so some pages are 404 :/
About your trouble, I would try to use the publicip operation group directly:
https://learn.microsoft.com/en-us/python/api/azure.mgmt.network.v2017_11_01.operations.publicipaddressesoperations?view=azure-python
You get this one in the Network client, as client.public_ip_addresses
I'm using python 3 to write a script that generates a customer report for Solarwinds N-Central. The script uses SOAP to query N-Central and I'm using zeep for this project. While not new to python I am new to SOAP.
When calling the CustomerList fuction I'm getting the TypeError: __init__() got an unexpected keyword argument 'listSOs'
import zeep
wsdl = 'http://' + <server url> + '/dms/services/ServerEI?wsdl'
client = zeep.CachingClient(wsdl=wsdl)
config = {'listSOs': 'true'}
customers = client.service.CustomerList(Username=nc_user, Password=nc_pass, Settings=config)
Per the perameters below 'listSOs' is not only a valid keyword, its the only one accepted.
CustomerList
public com.nable.nobj.ei.Customer[] CustomerList(String username, String password, com.nable.nobj.ei.T_KeyPair[] settings) throws RemoteException
Parameters:
username - MSP N-central username
password - Corresponding MSP N-central password
settings - A list of non default settings stored in a T_KeyPair[]. Below is a list of the acceptable Keys and Values. If not used leave null
(Key) listSOs - (Value) "true" or "false". If true only SOs with be shown, if false only customers and sites will be shown. Default value is false.
I've also tried passing the dictionary as part of a list:
config = []
key = {'listSOs': 'true'}
config += key
TypeError: Any element received object of type 'str', expected lxml.etree._Element or builtins.dict or zeep.objects.T_KeyPair
Omitting the Settings value entirely:
customers = client.service.CustomerList(Username=nc_user, Password=nc_pass)
zeep.exceptions.ValidationError: Missing element Settings (CustomerList.Settings)
And trying zeep's SkipValue:
customers = client.service.CustomerList(Username=nc_user, Password=nc_pass, Settings=zeep.xsd.SkipValue)
zeep.exceptions.Fault: java.lang.NullPointerException
I'm probably missing something simple but I've been banging my head against the wall off and on this for awhile I'm hoping someone can point me in the right direction.
Here's my source code from my getAssets.py script. I did it in Python2.7, easily upgradeable though. Hope it helps someone else, N-central's API documentation is really bad lol.
#pip2.7 install zeep
import zeep, sys, csv, copy
from zeep import helpers
api_username = 'your_ncentral_api_user'
api_password='your_ncentral_api_user_pw'
wsdl = 'https://(yourdomain|tenant)/dms2/services2/ServerEI2?wsdl'
client = zeep.CachingClient(wsdl=wsdl)
response = client.service.deviceList(
username=api_username,
password=api_password,
settings=
{
'key': 'customerId',
'value': 1
}
)
# If you can't tell yet, I code sloppy
devices_list = []
device_dict = {}
dev_inc = 0
max_dict_keys = 0
final_keys = []
for device in response:
# Iterate through all device nodes
for device_properties in device.items:
# Iterate through each device's properties and add it to a dict (keyed array)
device_dict[device_properties.first]=device_properties.second
# Dig further into device properties
device_properties = client.service.devicePropertyList(
username=api_username,
password=api_password,
deviceIDs=device_dict['device.deviceid'],
reverseOrder=False
)
prop_ind = 0 # This is a hacky thing I did to make my CSV writing work
for device_node in device_properties:
for prop_tree in device_node.properties:
for key, value in helpers.serialize_object(prop_tree).items():
prop_ind+=1
device_dict["prop" + str(prop_ind) + "_" + str(key)]=str(value)
# Append the dict to a list (array), giving us a multi dimensional array, you need to do deep copy, as .copy will act like a pointer
devices_list.append(copy.deepcopy(device_dict))
# check to see the amount of keys in the last item
if len(devices_list[-1].keys()) > max_dict_keys:
max_dict_keys = len(devices_list[-1].keys())
final_keys = devices_list[-1].keys()
print "Gathered all the datas of N-central devices count: ",len(devices_list)
# Write the data out to a CSV
with open('output.csv', 'w') as csvfile:
fieldnames = final_keys
writer = csv.DictWriter(csvfile, fieldnames=fieldnames)
writer.writeheader()
for csv_line in devices_list:
writer.writerow(csv_line)
I'm not sure if the title accurately describes what I'm trying to do. I have a Python3.x script that I wrote that will issue flood warning to my facebook page when the river near my home has reached it's lowest flood stage. Right now the script works, however it only reports data from one measuring station. I would like to be able to process the data from all of the stations in my county (total of 5), so I was thinking that maybe a class method may do the trick but I'm not sure how to implement it. I've been teaching myself Python since January and feel pretty comfortable with the language for the most part, and while I have a good idea of how to build a class object I'm not sure how my flow chart should look. Here is the code now:
#!/usr/bin/env python3
'''
Facebook Flood Warning Alert System - this script will post a notification to
to Facebook whenever the Sabine River # Hawkins reaches flood stage (22.3')
'''
import requests
import facebook
from lxml import html
graph = facebook.GraphAPI(access_token='My_Access_Token')
river_url = 'http://water.weather.gov/ahps2/river.php?wfo=SHV&wfoid=18715&riverid=203413&pt%5B%5D=147710&allpoints=143204%2C147710%2C141425%2C144668%2C141750%2C141658%2C141942%2C143491%2C144810%2C143165%2C145368&data%5B%5D=obs'
ref_url = 'http://water.weather.gov/ahps2/river.php?wfo=SHV&wfoid=18715&riverid=203413&pt%5B%5D=147710&allpoints=143204%2C147710%2C141425%2C144668%2C141750%2C141658%2C141942%2C143491%2C144810%2C143165%2C145368&data%5B%5D=all'
def checkflood():
r = requests.get(river_url)
tree = html.fromstring(r.content)
stage = ''.join(tree.xpath('//div[#class="stage_stage_flow"]//text()'))
warn = ''.join(tree.xpath('//div[#class="current_warns_statmnts_ads"]/text()'))
stage_l = stage.split()
level = float(stage_l[2])
#check if we're at flood level
if level < 22.5:
pass
elif level == 37:
major_diff = level - 23.0
major_r = ('The Sabine River near Hawkins, Tx has reached [Major Flood Stage]: #', stage_l[2], 'Ft. ', str(round(major_diff, 2)), ' Ft. \n Please click the link for more information.\n\n Current Warnings and Alerts:\n ', warn)
major_p = ''.join(major_r)
graph.put_object(parent_object='me', connection_name='feed', message = major_p, link = ref_url)
<--snip-->
checkflood()
Each station has different 5 different catagories for flood stage: Action, Flood, Moderate, Major, each different depths per station. So for Sabine river in Hawkins it will be Action - 22', Flood - 24', Moderate - 28', Major - 32'. For the other statinos those depths are different. So I know that I'll have to start out with something like:
class River:
def __init__(self, id, stage):
self.id = id #station ID
self.stage = stage #river level'
#staticmethod
def check_flood(stage):
if stage < 22.5:
pass
elif stage.....
but from there I'm not sure what to do. Where should it be added in(to?) the code, should I write a class to handle the Facebook postings as well, is this even something that needs a class method to handle, is there any way to clean this up for efficiency? I'm not looking for anyone to write this up for me, but some tips and pointers would sure be helpful. Thanks everyone!
EDIT Here is what I figured out and is working:
class River:
name = ""
stage = ""
action = ""
flood = ""
mod = ""
major = ""
warn = ""
def checkflood(self):
if float(self.stage) < float(self.action):
pass
elif float(self.stage) >= float(self.major):
<--snip-->
mineola = River()
mineola.name = stations[0]
mineola.stage = stages[0]
mineola.action = "13.5"
mineola.flood = "14.0"
mineola.mod = "18.0"
mineola.major = "21.0"
mineola.alert = warn[0]
hawkins = River()
hawkins.name = stations[1]
hawkins.stage = stages[1]
hawkins.action = "22.5"
hawkins.flood = "23.0"
hawkins.mod = "32.0"
hawkins.major = "37.0"
hawkins.alert = warn[1]
<--snip-->
So from here I'm tring to stick all the individual river blocks into one block. What I have tried so far is this:
class River:
... name = ""
... stage = ""
... def testcheck(self):
... return self.name, self.stage
...
>>> for n in range(num_river):
... stations[n] = River()
... stations[n].name = stations[n]
... stations[n].stage = stages[n]
...
>>> for n in range(num_river):
... stations[n].testcheck()
...
<__main__.River object at 0x7fbea469bc50> 4.13
<__main__.River object at 0x7fbea46b4748> 20.76
<__main__.River object at 0x7fbea46b4320> 22.13
<__main__.River object at 0x7fbea46b4898> 16.08
So this doesn't give me the printed results that I was expecting. How can I return the string instead of the object? Will I be able to define the Class variables in this manner or will I have to list them out individually? Thanks again!
After reading many, many, many articles and tutorials on class objects I was able to come up with a solution for creating the objects using list elements.
class River():
def __init__(self, river, stage, flood, action):
self.river = river
self.stage = stage
self.action = action
self.flood = flood
self.action = action
def alerts(self):
if float(self.stage < self.flood):
#alert = "The %s is below Flood Stage (%sFt) # %s Ft. \n" % (self.river, self.flood, self.stage)
pass
elif float(self.stage > self.flood):
alert = "The %s has reached Flood Stage(%sFt) # %sFt. Warnings: %s \n" % (self.river, self.flood, self.stage, self.action)
return alert
'''this is the function that I was trying to create
to build the class objects automagically'''
def riverlist():
river_list = []
for n in range(len(rivers)):
station = River(river[n], stages[n], floods[n], warns[n])
river_list.append(station)
return river_list
if __name__ == '__main__':
for x in riverlist():
print(x.alerts())