import ast
dict_from_file=[]
with open('4.txt', 'r') as inf:
dict_from_file = ast.literal_eval(inf.read())
File "<unknown>", line 1
["hello":"work", "please":"work"]
^
SyntaxError: invalid character in identifier
Hi Everyone! The above is my code and my error. I have a really complicated 40MB data file in the form of a dictionary to work on, but couldn't get that import to work so tried a simple one.
I'm using the latest Jupyter notebook from the latest version of Anaconda, on Windows 10. My dictionary is a txt file created using windows notepad. The complicated dictionary was originally a JSON file that I changed into a txt file thinking it would be easier but I may be wrong.
I think the above error is an encoding issue? But not sure how to fix it.
Thanks!
If you are the owner/write of the file (dict formated), save as json
import json
#To write
your_dict = {.....}
with open("file_name.txt", "w+") as f:
f.write(json.dumps(your_dict)
#To read
with open("file_name.txt") as f:
read_dict = json.load(f)
This is possibly a python 3 "feature".
This code removes the unwanted characters at the start of the input file and returns the input data as type string.
with open('4.txt', 'r',,encoding="utf-8-sig") as inf:
dict_from_file = ast.literal_eval(inf.read())
This removes the strange characters put at the beginning of read data.
Related
I am very fresh in Python. I would like to read JSON files in Python, but I did not get what are the problems. Please see the image.
You have to specify a mode to the open() function. In this case I think you're trying to read the file, so your mode would be "r". Your code should be:
with open(r'path/to/read/','r') as file:
data = json.load(file)
Your code should run now.
Your path should not contain spaces. Please modify the file path.
Generally speaking, the file path is best to be in full English with no spaces and no special characters.
import sys
import os
import json
def JsonRead(str):
with open(str, encoding='utf-8') as f:
data = json.load(f)
return data
new_Data = JsonRead(filePath)
Then import JsonRead in project
When viewing a log file on my (solaris) machine, I can see it is formatted as "^A1=hello^A2=goodbye^A3=salut". I am looking to be able to use a string.split("^A") so I can break the line into parts and use the key value pairs.
However when I loop through this same file in python 2.6.4, It is loaded as "1=hello2=goodbye3=salut" and I cannot split it.
When I run a file command on this I get
file Tom.log
Tom.log: c program text
I have tried importing codecs (as below) and selecting 'UTF-8', but no joy. Any help is appreciated.
import codecs
f = codecs.open('Tom.log', 'r', 'UTF-8')
for line in f:
print(line)
The code below is meant to find any xls or csv file used in a process. The .log file contains full paths with extensions and definitely contains multiple values with "xls" or "csv". However, Python can't find anything...Any idea? The weird thing is when I copy the content of the log file and paste it to another notepad file and save it as log, it works then...
infile=r"C:\Users\me\Desktop\test.log"
important=[]
keep_words=["xls","csv"]
with open(infile,'r') as f:
for line in f:
for word in keep_words:
if word in line:
important.append(line)
print(important)
I was able to figure it out...encoding issue...
with io.open(infile,encoding='utf16') as f:
You must change the line
for line in f:
to
for line in f.readlines():
You made the python search in the bytes opened file, not in his content, even in his lines (in a list, just like the readlines method);
I hope I was able to help (sorry about my bad English).
I am unable to read the data from file in python . Below is the sample code and Error which I am getting .
abc.txt has the value 2015-05-07
f = open("/opt/test/abc.txt","r")
f.read()
last_Exe_date = f.read()
f.close()
while reading the file(anc.txt) i am getting the error : TypeError: argument 1 must be string or read-only character buffer, not file . i am not able to read the value into last_Exe_date from file(abc.txt) . could you please correct me if I am wrong with the code.
When you read a file once, the cursor is at the end of the file and you won't get anything more by re-reading it. Read through the docs to understand it more. And use readline to read a file line by line.
Oh, and remove the semicolon at the end of your read calls...
The following should work fine:
f = open("/opt/test/abc.txt","r")
last_Exe_date = f.read()
f.close()
As was said, you had f.read() twice, so when you tried to store the contents into last_Exe_date, it would be empty.
You could also consider using the following method:
with open("/opt/test/abc.txt","r") as f:
last_Exe_date = f.read()
This will ensure that the file is automatically closed afterwards.
I just tried to update a program i wrote and i needed to add another pickle file. So i created the blank .pkl and then use this command to open it(just as i did with all my others):
with open('tryagain.pkl', 'r') as input:
self.open_multi_clock = pickle.load(input)
only this time around i keep getting this really weird error for no obvious reason,
cPickle.UnpicklingError: invalid load key, 'Γ'.
The pickle file does contain the necessary information to be loaded, it is an exact match to other blank .pkl's that i have and they load fine. I don't know what that last key is in the error but i suspect that could give me some incite if i know what it means.
So have have figured out the solution to this problem, and i thought I'd take the time to list some examples of what to do and what not to do when using pickle files. Firstly, the solution to this was to simply just make a plain old .txt file and dump the pickle data to it.
If you are under the impression that you have to actually make a new file and save it with a .pkl ending you would be wrong. I was creating my .pkl's with notepad++ and saving them as .pkl's. Now from my experience this does work sometimes and sometimes it doesn't, if your semi-new to programming this may cause a fair amount of confusion as it did for me. All that being said, i recommend just using plain old .txt files. It's the information stored inside the file not necessarily the extension that is important here.
#Notice file hasn't been pickled.
#What not to do. No need to name the file .pkl yourself.
with open('tryagain.pkl', 'r') as input:
self.open_multi_clock = pickle.load(input)
The proper way:
#Pickle your new file
with open(filename, 'wb') as output:
pickle.dump(obj, output, -1)
#Now open with the original .txt ext. DONT RENAME.
with open('tryagain.txt', 'r') as input:
self.open_multi_clock = pickle.load(input)
Gonna guess the pickled data is throwing off portability by the outputted characters. I'd suggest base64 encoding the pickled data before writing it to file. What what I ran:
import base64
import pickle
value_p = pickle.dumps("abdfg")
value_p_b64 = base64.b64encode(value_p)
f = file("output.pkl", "w+")
f.write(value_p_b64)
f.close()
for line in open("output.pkl", 'r'):
readable += pickle.loads(base64.b64decode(line))
>>> readable
'abdfg'