I am unable to write the result of the following code to a file
import boto3
ACCESS_KEY= "XXX"
SECRET_KEY= "XXX"
regions = ['us-east-1','us-west-1','us-west-2','eu-west-1','sa-east-1','ap-southeast-1','ap-southeast-2','ap-northeast-1']
for region in regions:
client = boto3.client('ec2',aws_access_key_id=ACCESS_KEY,aws_secret_access_key=SECRET_KEY,region_name=region,)
addresses_dict = client.describe_addresses()
#f = open('/root/temps','w')
for eip_dict in addresses_dict['Addresses']:
with open('/root/temps', 'w') as f:
if 'PrivateIpAddress' in eip_dict:
print eip_dict['PublicIp']
f.write(eip_dict['PublicIp'])
This results in printing the IP's but nothing gets written in file, the result of print is :
22.1.14.1
22.1.15.1
112.121.41.41
....
I just need to write the content in this format only
for eip_dict in addresses_dict['Addresses']:
with open('/root/temps', 'w') as f:
if 'PrivateIpAddress' in eip_dict:
print eip_dict['PublicIp']
f.write(eip_dict['PublicIp'])
You are re-opening the file for writing at each iteration of the loop. Perhaps the last iteration has no members with 'PrivateIpAddress' in its dict, so the file gets opened, truncated, and left empty. Write it this way instead:
with open('/root/temps', 'w') as f:
for eip_dict in addresses_dict['Addresses']:
if 'PrivateIpAddress' in eip_dict:
print eip_dict['PublicIp']
f.write(eip_dict['PublicIp'])
open file in append mode
with open('/root/temps', 'a') as f:
or
declare the file outside the loop
Related
I need to define a fucntion that will, in short:
Open and grab the content from an existing file
Transform that content
Create a new file
Write that new content in this new file
Print the content of the new file
I'm a complete begginer, but I got this until now. How can I improve this?
def text():
#open the existing file
text_file = open('music.txt', 'r')
#reads the file
reading = text_file.read ()
#this turns everything to lower case, counts the words and displays the list vertically
from collections import Counter
new_text = reading.lower()
list_words = Counter(new_text.split())
ordered_list = sorted(list_words.items())
#creates a new file and writes the content there
with open('finheiro_saida.txt', 'x') as final_file:
for i in ordem:
finheiro_saida.write(str(i) + '\n')
#not sure how to open this new file and print its content, when I tried it says the new file doesn't exist in the directory - tried everything.
final = open('C:/Users/maria/OneDrive/Documents/SD_DTM/ficheiro_saida.txt', 'r')
read_file = final.read ()
print(read_file)
You can open the new file and print its content the same way you read and wrote to it!
# ...After all your previous code...
with open('finheiro_saida.txt', 'r') as final_file:
final_file_content = final_file.read()
print(final_file_content)
Fixed some syntax error in your code.
you can display the the same way you read.
Also provide all imports to the start of the file.
you can also read all lines from the file as a list using file.readlines()
from collections import Counter
def text():
# open the existing file
text_file = open("music.txt", "r")
# reads the file
reading = text_file.read()
# this turns everything to lower case, counts the words and displays the list vertically
new_text = reading.lower()
list_words = Counter(new_text.split())
ordered_list = sorted(list_words.items())
# creates a new file and writes the content there
file_name = "finheiro_saida.txt"
with open("finheiro_saida.txt", "x") as final_file:
for i in ordered_list:
final_file.write(str(i) + "\n")
return file_name
def display(final_file_name):
with open(final_file_name) as file:
print(file.read())
final_file_name = text()
display(final_file_name)
I am trying to add a list file to a script.
I need to make it so that to take the public key data from the "list.txt" file and save all the results to the "save.txt" file?
from bitcoinlib.keys import Address
master = Address ("0341b40ab5b2972161f2ff3d5487e0fb8260f2d98221cc2eb4fa3f28b6ad10d81e", encoding = 'bech32', script_type = 'p2wpkh')
print (master.address)
At the moment I am getting one value
bc1q7wdz5dcs553f2y6qgf38xdgqs2kqgkhn5ydn9l
How to fix that in place of this value: 0341b40ab5b2972161f2ff3d5487e0fb8260f2d98221cc2eb4fa3f28b6ad10d81e
There was a list of this file "list.txt"
02485a4e62913be3db116d1ab15f84110599ea8905cd7dbae7be6fa02033fdb54e
0315da5f8f47787f6e8294bd369a4dd81aea97429630ecae831a9f6362a6917106
023741e71ebddc5eca046c9b23ac7c5230160fe1335e655c9bbe0b8a20c8d89802
037782a3fcc6c0ca092658a513c9f051cc95d540d215f0c965176c664d49d3e732
029c6c7748107fc9584a838df6a2c8224ae2339e2a95b15b4cd8bcc67c2d149cd5
To get all the value and save to the file "save.txt"
bc1q6jxrahx3rw6lt2nlv5fpsdtllyzaa03m4d98xv
bc1qct3fu8543tryapkq4kpgw5ph8cj74zhtrdp5sx
bc1q5a3h25vu4kn90sc70rkm65narezzw97khu4dhu
bc1qutzkrtc7tqqjgrzns3s3h92f8wfxvfhp99ppnn
bc1ql2slqxzp7c9hdxhlp0ehlzdg2qa94xh5lk2anw
Please help me with fixing the code!
As far as i'm concerned you want to use each line of file separately.
First read all the lines to list:
with open('list.txt', 'r') as f:
lists = [i.replace('\n', '') for i in f.readlines()]
Then for each line, create Address instance, and save it to another list:
addresses = []
for l in lists:
master = Address(l, encoding = 'bech32', script_type = 'p2wpkh')
addresses.append(master.address)
The last part is to save all to file save.txt
with open('save.txt', 'w+') as f:
for a in addresses:
f.write(a + '\n')
I have to write substrings to a new file by reading from another file. The problem I am facing is that it only writes the last found substring.
Here is what I've tried.
def get_fasta(site):
with open('file1.txt', 'r') as myfile:
data=myfile.read()
site = site-1
str1 = data[site:site+1+20]
temp = data[site-20:site]
final_sequence = temp+str1
with open('positive_results_sequences.txt', 'w') as my_new_file:
my_new_file.write(final_sequence + '\n')
def main():
# iterate over the list of IDS
for k,v in zip(site_id_list):
get_fasta(v)
if __name__ == '__main__':
main()
That's because you've opened the inner file in w mode which recreates the file each time. So the end result is that only last write persists. You want to use a mode (which stands for "append").
Also there are some other issues with your code. For example you open and close both files in each loop iteration. You should move file opening code outside and pass them as parameters:
def main():
with open('file1.txt', 'r') as myfile:
with open('positive_results_sequences.txt', 'a') as my_new_file:
for k,v in zip(site_id_list):
get_fasta(v, myfile, my_new_file)
i got list of URLs, for example:
urls_list = [
"http://yandex.ru",
"http://google.ru",
"http://rambler.ru",
"http://google.ru",
"http://gmail.ru",
"http://mail.ru"
]
I need to open the csv file, check if each value from list in file - skip to next value, else (if value not in a list) add this value in list.
Result: 1st run - add all lines (if file is empty), 2nd run - doing nothing, because all elements in already in file.
A wrote code, but it's work completely incorrect:
import csv
urls_list = [
"http://yandex.ru",
"http://google.ru",
"http://rambler.ru",
"http://google.ru",
"http://gmail.ru",
"http://mail.ru"
]
with open('urls_list.csv', 'r') as fp:
for row in fp:
for url in urls_list:
if url in row:
print "YEY!"
with open('urls_list.csv', 'a+') as fp:
wr = csv.writer(fp, dialect='excel')
wr.writerow([url])
Read the file into a variable-
with open('urls_list.csv', 'r') as fp:
s = fp.read()
Check to see if each list item is in the file, if not save it
missing = []
for url in urls_list:
if url not in s:
missing.append(url + '\n')
Write the missing url's to the file
if missing:
with open('urls_list.csv', 'a+') as fp:
fp.writelines(missing)
Considering your file has only one column, the csv module might be an overkill.
Here's a version that first reads all the lines from the file and reopens the file to write urls that are not already in the file:
lines = open('urls_list.csv', 'r').read()
with open('urls_list.csv', 'a+') as fp:
for url in urls_list:
if url in lines:
print "YEY!"
else:
fp.write(url+'\n')
I am trying to append values to a json file. How can i append the data? I have been trying so many ways but none are working ?
Code:
def all(title,author,body,type):
title = "hello"
author = "njas"
body = "vgbhn"
data = {
"id" : id,
"author": author,
"body" : body,
"title" : title,
"type" : type
}
data_json = json.dumps(data)
#data = ast.literal_eval(data)
#print data_json
if(os.path.isfile("offline_post.json")):
with open('offline_post.json','a') as f:
new = json.loads(f)
new.update(a_dict)
json.dump(new,f)
else:
open('offline_post.json', 'a')
with open('offline_post.json','a') as f:
new = json.loads(f)
new.update(a_dict)
json.dump(new,f)
How can I append data to json file when this function is called?
I suspect you left out that you're getting a TypeError in the blocks where you're trying to write the file. Here's where you're trying to write:
with open('offline_post.json','a') as f:
new = json.loads(f)
new.update(a_dict)
json.dump(new,f)
There's a couple of problems here. First, you're passing a file object to the json.loads command, which expects a string. You probably meant to use json.load.
Second, you're opening the file in append mode, which places the pointer at the end of the file. When you run the json.load, you're not going to get anything because it's reading at the end of the file. You would need to seek to 0 before loading (edit: this would fail anyway, as append mode is not readable).
Third, when you json.dump the new data to the file, it's going to append it to the file in addition to the old data. From the structure, it appears you want to replace the contents of the file (as the new data contains the old data already).
You probably want to use r+ mode, seeking back to the start of the file between the read and write, and truncateing at the end just in case the size of the data structure ever shrinks.
with open('offline_post.json', 'r+') as f:
new = json.load(f)
new.update(a_dict)
f.seek(0)
json.dump(new, f)
f.truncate()
Alternatively, you can open the file twice:
with open('offline_post.json', 'r') as f:
new = json.load(f)
new.update(a_dict)
with open('offline_post.json', 'w') as f:
json.dump(new, f)
This is a different approach, I just wanted to append without reloading all the data. Running on a raspberry pi so want to look after memory. The test code -
import os
json_file_exists = 0
filename = "/home/pi/scratch_pad/test.json"
# remove the last run json data
try:
os.remove(filename)
except OSError:
pass
count = 0
boiler = 90
tower = 78
while count<10:
if json_file_exists==0:
# create the json file
with open(filename, mode = 'w') as fw:
json_string = "[\n\t{'boiler':"+str(boiler)+",'tower':"+str(tower)+"}\n]"
fw.write(json_string)
json_file_exists=1
else:
# append to the json file
char = ""
boiler = boiler + .01
tower = tower + .02
while(char<>"}"):
with open(filename, mode = 'rb+') as f:
f.seek(-1,2)
size=f.tell()
char = f.read()
if char == "}":
break
f.truncate(size-1)
with open(filename, mode = 'a') as fw:
json_string = "\n\t,{'boiler':"+str(boiler)+",'tower':"+str(tower)+"}\n]"
fw.seek(-1, os.SEEK_END)
fw.write(json_string)
count = count + 1