Python can't open file "No such file or directory"
Solution 1
Get the directory of the file, and join it with the file you want to open:
def main():
dir_path = os.path.dirname(os.path.realpath(__file__))
lines = os.path.join(dir_path, "lines.txt")
fh = open(lines)
for line in fh.readlines():
print(line)
if __name__ == "__main__": main()
Solution 2
This should do the trick.
def main():
fh = open('lines.txt')
for line in fh.readlines():
print(line)
if __name__ == "__main__":
import os
curr_dir = os.path.dirname(os.path.realpath(__file__)) # get's the path of the script
os.chdir(curr_dir) # changes the current path to the path of the script
main()
Vincent Tang
I mostly develop with NodeJS / Javascript for full-stack applications, but I dabble in Python . I am a confident developer willing to learn new things as they come. Please check out my GitHub or go to my blog to learn more about projects I have done. Below are a few of my best answers and questions, not based on votes, but rather brevity and helpfulness. As well as projects I've made that solve real-world applications. I contribute to a number of communities besides StackOverflow, listed below QUESTIONS Javascript: Split a string into array matching parameters Javascript access json property javascript how to get json data with api call to redirected url ANSWERS Excel - Seperating / Showing Deleted Duplicated Data Excel VBA Grab Ancestor value from Relational Data Creating URL Paginator with Excel VBA PROJECTS ExcelVBA - Bulk Downloader & Renamer Script used by 300+ database-developers for ETL and local backup COMMUNITIES Alternativeto.net and Software Recommendations Freecodecamp forums solutions SuperUser Forums CONTACT I live on US East Coast. You can reach me here :::::: vincentntang (at) gmail If you email me please write bananas in the subject line.
Updated on June 18, 2022Comments
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Vincent Tang almost 2 years
def main(): fh = open('lines.txt') for line in fh.readlines(): print(line) if __name__ == "__main__": main()
Directory files
I am on
for-working.py
file, and am trying to access thelines.txt
file within the same working directory. But I get errorNo such file or directory: 'lines.txt'
Does python need to have an absolute path when opening files?
why doesn't this relative path work here?
Running python 3.6
EDIT ^1 I'm running visualstudio code with the python package extension by Don Jayamanne, and "Code Runner" package to compile/execute python code
EDIT ^2 Full error:
Traceback (most recent call last): File "c:\www\Ex_Files_Python_3_EssT(1)\Ex_Files_Python_3_EssT\Exercise Files\07 Loops\for-working.py", line 11, in <module> if __name__ == "__main__": main() File "c:\www\Ex_Files_Python_3_EssT(1)\Ex_Files_Python_3_EssT\Exercise Files\07 Loops\for-working.py", line 7, in main fh = open('lines.txt', 'r') FileNotFoundError: [Errno 2] No such file or directory: 'lines.txt'
EDIT ^3 checking sys.path
import sys print(sys.path)
produces this information:
['c:\\www\\Ex_Files_Python_3_EssT(1)\\Ex_Files_Python_3_EssT\\Exercise Files\\07 Loops', 'C:\\Users\\Kagerjay\\AppData\\Local\\Programs\\Python\\Python36\\python36.zip', 'C:\\Users\\Kagerjay\\AppData\\Local\\Programs\\Python\\Python36\\DLLs', 'C:\\Users\\Kagerjay\\AppData\\Local\\Programs\\Python\\Python36\\lib', 'C:\\Users\\Kagerjay\\AppData\\Local\\Programs\\Python\\Python36', 'C:\\Users\\Kagerjay\\AppData\\Local\\Programs\\Python\\Python36\\lib\\site-packages']
EDIT ^4 checking os.getcwd()
Running
import os print(os.getcwd())
Produces
c:\www\Ex_Files_Python_3_EssT(1)\Ex_Files_Python_3_EssT\Exercise Files
Well its definitely not in the right subdirectory (needs to
cd 07 loops
folder, that narrows the issue downEDIT ^5 what is in lines.txt file
My lines.txt file i am opening looks like this. No extra whitespace or anything at start
01 This is a line of text 02 This is a line of text 03 This is a line of text 04 This is a line of text 05 This is a line of text
IN SUMMARY
Visual studio code's Code runner extension needs to be tweaked slightly to open files within a subdirectory so any of the below answers would provide a more robust solution to be independent of any extension / dependencies with the IDE
import os print(os.getcwd())
Is most useful for diagnosing problem to the current directory python interpreter sees