- How can I get a binary from a .py file
- 2 Answers 2
- Python how to create binary file in py
- How do I create a .bin file for a given file in python?
- Bazel: create py_binary from python file in py_library
- How to create an exact copy of a non-text binary file in python
- How to add a binary data file in the same directory as of exe using pyinstaller?
- Write Binary File in Python
- Use bytes() Function
- Create bin file python
- 1. Python program to write a list namely list1 in the file named file1.txt
- 2. Python program to write a tuple namely t1 in the file named file2.txt
- 3. Python program to write a dictionary namely d1 in the file named file3.txt
- 4. Python program to create a binary file named employee.dat and write details of employees available in the form of dictionaries.
- 5. Python program to create a binary file named student.dat . Data of students must be put at run time then it should be stored in file. The structure of data is (rollno, name, marks).
- Appending Records in Binary File in Python
- # Python program to append a list namely list1 in the file named file1.txt
- #Python program to append a tuple namely t1 in the file named file2.txt
- #Python program to append a dictionary namely d1 in the file named file3.txt
- #Python program to append student records to an existing file student.dat by getting input from user.
How can I get a binary from a .py file
I need a program to compile python source code; as I found out at first I need to make a binary file from my python script. I’ve already checked a lot of links, but still I haven’t found something for Linux. I found py2bin for OS/X, but there are no versions for Linux.
wiki.python.org/moin/Freeze That method will compile executables for *nix systems. Although I’m not sure if that’s what you want.
2 Answers 2
In my opinion your problem in Google stems for calling a compiler capable of producing binaries from python a «disassembler».
I have not found a true compiler, however I have found in Google a python compiler packager, which packs all the necessary files in a directory, obfuscating them, with an executable frontend: pyinstaller at http://www.pyinstaller.org/ ; it appears to be actively supported, as the last version 3.4 which was released on 2018-09-09, contrary to py2bin which seems to be not actively maintained.
- Packaging of Python programs into standard executables, that work on computers without Python installed.
- Multi-platform, works under:
Windows (32-bit and 64-bit),
Linux (32-bit and 64-bit),
Mac OS X (32-bit and 64-bit),
contributed suppport for FreeBSD, Solaris, HPUX, and AIX. - Multi-version:
supports Python 2.7 and Python 3.3—3.6.
Then, go to your program’s directory and run:
pyinstaller yourprogram.py
This will generate the bundle in a subdirectory called dist.
Python how to create binary file in py
There’s better ways to do this (like using and various other functions in the standard library to copy files) Solution: try running as admin, the file doesnt let the executable access it. optionally you can create a py script out of the file from another py script, and have this script just store the binary data as a variable, it would arugably be the same size as the text file, but i wouldnt open the script in an editor use the var = / something for multiple line strings once you it will read all that into memory,but u can later
How do I create a .bin file for a given file in python?
All files are technically «bin» files since they are simply a sequence of bytes. Open the file with open(‘name’, ‘rb’) so that it is in «binary» or raw mode. See the documentation for open for more information. Then read the bytes into a variable using file.read . You can dump the binary representation of a file using something like the following:
from __future__ import print_function def dump_file(name): with open(name, 'rb') as in_file: for data in in_file: for a_byte in data: print(''.format(ord(a_byte)), end='') print('')
Python — How to add a binary data file in the same, try running as admin, the file doesnt let the executable access it. optionally you can create a py script out of the file from another py script, and have this script just store the binary data as a variable, it would arugably be the same size as the text file, but i wouldnt open the script in an editor
Bazel: create py_binary from python file in py_library
You can put the py_binary rule directly into cpplint.BUILD :
py_binary( name = "cpplint", srcs = ["cpplint.py"], )
and then build it like this:
$ bazel build @cpplint_archive//:cpplint INFO: Found 1 target. Target @cpplint_archive//:cpplint up-to-date: bazel-bin/external/cpplint_archive/cpplint INFO: Elapsed time: 2.327s, Critical Path: 0.01s
If you really do want the py_binary rule to be in the main repository, you can do:
py_binary( name = "cpplint", srcs = ["@cpplint_archive//:cpplint.py"], )
But it’s typically not as nice to pull in files from other packages.
Binary — How do I create a .bin file for a given file in, Sorted by: 1. All files are technically «bin» files since they are simply a sequence of bytes. Open the file with open (‘name’, ‘rb’) so that it is in «binary» or raw mode. See the documentation for open for more information. Then read the bytes into a variable using file.read. You can dump the binary representation of a …
How to create an exact copy of a non-text binary file in python
You can use shutil for this purpose
from shutil import copyfile in_file_name = input('Enter an existing file: ') out_file_name = input('Enter a new destination file: ') try: copyfile(in_file_name, out_file_name) except IOError: print("Seems destination is not writable")
- There’s better ways to do this (like using shutil.copy and various other functions in the standard library to copy files)
- If it’s a binary file, open it in «binary» mode.
Anyway, here’s how to do it if you’re sticking to manually doing it.
orig_file = "first.dat" copy_file = "second.dat" with open(orig_file, "rb") as f1: with open(copy_file, "wb") as f2: # Copy byte by byte byte = f1.read(1) while byte != "": f2.write(byte) byte = f1.read(1)
Using std library functions: How do I copy a file in python?
Here is what I did. Using while ch != «»: gave me a hanging loop, but it did copy the image. The call to read returns a falsy value at EOF.
from sys import argv donor = argv[1] recipient = argv[2] # read from donor and write into recipient # with statement ends, file gets closed with open(donor, "rb") as fp_in: with open(recipient, "wb") as fp_out: ch = fp_in.read(1) while ch: fp_out.write(ch) ch = fp_in.read(1)
I have written a code in python to create a binary file, I have written a code in python to create a binary file with roll number, name and marks. On inputting a roll number it should update the marks. But my code is not working as expected can anybody help me with this? # Create a binary file with name, rollno and marks.
How to add a binary data file in the same directory as of exe using pyinstaller?
try running as admin, the file doesnt let the executable access it. optionally you can create a py script out of the file from another py script, and have this script just store the binary data as a variable, it would arugably be the same size as the text file, but i wouldnt open the script in an editor
a='txtfile="""' with open('script.py' as 'wb') as v: with open('file.txt', 'rb') as f: a+=f.read() a+="""' v.write(a)
use the var = / something for multiple line strings once you import script.py it will read all that into memory,but u can del script.txtfile later
Writing integers in binary to file in python, How can I write integers to a file in binary in Python 3? For example, I want to write 6277101735386680763835789423176059013767194773182842284081 to a …
Write Binary File in Python
We created a byte_list using a sequence of values from 0 to 255 in binary form.
The bytearray() function is a built-in function in Python that takes an iterable to convert it into an array of bytes.It is an object constructor for a mutable array of bytes, like a list , but unordered. From an iterable of integers, it only accepts values in the range(256) , or the function throws a ValueError: byte must be in range(0, 256) .
We used the bytearray() function to convert the byte_list to the byte_array . To successfully write the byte_array to the file, we used Python’s try-except control flow statement. It handles errors and exceptions without disrupting the flow of the program.
We used the with keyword to wrap the code block of writing the byte_array to the bytes_array.txt file. Next, we used the open() function to open a file for reading, or writing is a built-in function in Python. It took two arguments: the filename and the mode.
The mode is an optional argument. It defaults to r (read) if it’s not specified. We specified the mode as wb to create or truncate the existing file named bytes_array.txt as binary. The write() function wrote the byte_array to the bytes_array.txt file.
Use bytes() Function
To write a binary file in Python:
- Use the bytes() function to convert the list of bytes to a bytes type object.
- Use a with clause with open() the method in write binary mode( wb )
- Use write() method to write the byte_array to the file.
Create bin file python
To write an object to a binary file opened in the write mode, we should use dump( ) function of pickle module as per the following syntax :
For example, if you have a file open in handle f1 as
f1=open(“file1.txt”,”wb”)
1. Python program to write a list namely list1 in the file named file1.txt
import pickle f1=open("file1.txt","wb") list1=[1,'Lovejot','Teacher'] pickle.dump(list1,f1) f1.close()
2. Python program to write a tuple namely t1 in the file named file2.txt
import pickle f2=open("file2.txt","wb") t1=(2,'Sumit','XII'] pickle.dump(t1,f2) f2.close()
3. Python program to write a dictionary namely d1 in the file named file3.txt
import pickle f3=open("file3.txt","wb") d1= pickle.dump(d1,f3) f3.close()
4. Python program to create a binary file named employee.dat and write details of employees available in the form of dictionaries.
import pickle # dictionary objects E1= E2= #open file in write mode file1 = open (‘Employee.dat’ , ‘wb’) #write to the file pickle.dump (E1 ,file1) pickle.dump (E2 , file1) #close file file1.close( )
5. Python program to create a binary file named student.dat . Data of students must be put at run time then it should be stored in file. The structure of data is (rollno, name, marks).
import pickle s= < >#declare empty dictionary file2 = open(‘student.dat’ , ‘wb’) #open file R = int (input (“Enter roll number=“ ) ) N = input (“Enter name =“ ) M = float(input (“Enter marks =“ ) # add read data into dictionary S [‘Rollno’] = R S [‘Name’] = N S[‘Marks’] = M # now write into the file pickle.dump (s ,file2) file2.close( )
Appending Records in Binary File in Python
Appending records in binary files is similar to writing record but there are two differences:
i. We need to open binary file in append mode (“ab”).
ii. If file doesn’t exit, it will create a new file .
iii. If file already exits, it will write new record at the end of existing file.
# Python program to append a list namely list1 in the file named file1.txt
import pickle f1=open("file1.txt","ab") list1=[2,'Ayush','Student'] pickle.dump(list1,f1) f1.close()
#Python program to append a tuple namely t1 in the file named file2.txt
import pickle f2=open("file2.txt","ab") t1=(3,'Sunita','XI'] pickle.dump(t1,f2) f2.close()
#Python program to append a dictionary namely d1 in the file named file3.txt
import pickle f3=open("file3.txt","ab") d1= pickle.dump(d1,f3) f3.close()
#Python program to append student records to an existing file student.dat by getting input from user.
import pickle Students = < >#empty dictionary created to store records file1 = open ('Student.dat', 'ab') choice = 'y' while choice == 'y' : #Read values of rollno, name and marks R=int(input("Enter roll number of student Enter name Enter marks Do you want to add more records (y/n)) file1.close( )
Enter roll number of student = 101 Enter name =anita Enter marks = 88 Do you want to add more records (y/n)…y Enter roll number of student = 102 Enter name =sunil Enter marks = 56 Do you want to add more records (y/n)n