Python: how do I save a file in a different directory?

So right now — my Python program (in a UNIX environment) can save files.

How could I save it in a new directory without switching directories? I would want to save the files in a directory like Pics2/forcing3damping3omega3set2.png.

3 Answers 3

By using a full or relative path. You are specifying just a filename, with no path, and that means that it’ll be saved in the current directory.

To save the file in the Pics2 directory, relative from the current directory, use:

or better still, construct the path with os.path.join() and string formatting:

Best is to use an absolute path:

You can join your filename with a full path so that it saves in a specific location instead of the current directory:

Using os.path.join will properly handle the separators, in a platform independent way.

I am assuming that you are working with pylab ( matplotlib ).

You can use a full path as the fname argument of savefig(fname, . ) , which can be either an absolute path like /path/to/your/fig.png or a relative one like relative/path/to/fig.png . You should make sure that the directory for saving the file already exists. If not use os.makedirs to create it first:

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Python3:Save File to Specified Location

I have a rather simple program that writes HTML code ready for use.

It works fine, except that if one were to run the program from the Python command line, as is the default, the HTML file that is created is created where python.exe is, not where the program I wrote is. And that’s a problem.

Do you know a way of getting the .write() function to write a file to a specific location on the disc (e.g. C:\Users\User\Desktop)?

Extra cool-points if you know how to open a file browser window.

2 Answers 2

The first problem is probably that you are not including the full path when you open the file for writing. For details on opening a web browser, read this fine manual.

BTW: the code is the same in python 2.6.

I’ll admit I don’t know Python 3, so I may be wrong, but in Python 2, you can just check the __file__ variable in your module to get the name of the file it was loaded from. Just create your file in that same directory (preferably using os.path.dirname and os.path.join to remain platform-independent).

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Python Save to file

I would like to save a string to a file with a python program named Failed.py

Here is what I have so far:

5 Answers 5

Here is a more pythonic version, which automatically closes the file, even if there was an exception in the wrapped block:

You need to open the file again using open() , but this time passing ‘w’ to indicate that you want to write to the file. I would also recommend using with to ensure that the file will be closed when you are finished writing to it.

Naturally you may want to include newlines or other formatting in your output, but the basics are as above.

The same issue with closing your file applies to the reading code. That should look like this:

You can use this function:

Check out setdefault, it makes the code a little more legible. Then you dump your data with the file object’s write method.

In order to write into a file in Python, we need to open it in write w , append a or exclusive creation x mode.

We need to be careful with the w mode, as it will overwrite into the file if it already exists. Due to this, all the previous data are erased.

Writing a string or sequence of bytes (for binary files) is done using the write() method. This method returns the number of characters written to the file.

This program will create a new file named Failed.py in the current directory if it does not exist. If it does exist, it is overwritten.

We must include the newline characters ourselves to distinguish the different lines.

Python save an image to file

In this Python tutorial, we will learn how to save an image to file in python and also we will cover these topics:

• How to save an image in python
• Python show image
• Python save the image OpenCV2
• Python save an image to file from URL
• Read jpg from window clipboard in python
• Convert string in base64 to image and save in file python
• Python save the image file to a folder
• Python write an image to file
• Python save the image to file open cv

How to save an image using a pillow in python

Here, we can see how to save an image in python.

• In this example, I have imported a module called Image from PIL and declared a variable picture, and assigned Image.open(r’Downloads\3.jpg’) the path and the name of the image along with extension.
• And declared another variable and assigned picture.save(“dolls.jpg”) . Here, doll.jpg is the new name of the image.

In the below screenshot you can the image is saved as dolls.jpg.

Python show image

Here, we can see how to show image in python.

• In this example, I have imported a module called Image from PIL module and to open the image.
• I have used image = Image.open(‘newpic.jpg’) to open the image. Image.open along with the name of the image and the extension.
• The image.show() is used to show the image in python.

Python save the file with OpenCV2

Here, we can see how to save the file with opencv2 in python.

• In this example, I have imported a module called cv2 and os and taken a variable as a path and assigned a path and taken a directory as another variable, and assigned the path of the directory.
• The imread is used to specify the way in which the image should be read, the os.chdir(directory) method to change current directories to a given path.
• The image dora.jpg from the path is copied to the directory by changing the name dora.jpg to cat.jpg and listing the file name from the directory after save the cat.jpg file.
• The os.listdir is used to list the directories, the directories will be listed before and after saving the image.

Here, we can the list of directories before and after saving as the output. You can refer to the below screenshot for the output:

Python save an image to file from URL

Here, we can see how to save an image to file from URL in python.

• In this example, I have imported a module called urllib.request. The urllib.request module defines functions and classes that help to open the URL.
• I have imported the Image module from PIL, the urlretrieve method of the module used for retrieving the files, and the URL is assigned “https://bit.ly/3oAeohK”.
• We can shorten the length of the URL by using URL Shortner tools.
• The PIL.Image.open(“new.png”) is used to open the image, new.png is the name of the file.
• The image.show() is used to display the image from the file.

The URL is saved in the image format as the output in the below screenshot.

Read jpg from window clipboard in python

Here, we can see how to read jpg from window clipboard in python.

• In this example, I have imported a module called win32clipboard. The .OpenClipboard() is used to open the clipboard and prevent other applications to modify the content.
• When the application calls GetClipboardData() function the system performs implicit data format conversion between clipboard formats and copies the data.
• To read the jpg file, I have opened the file as “savedImage.jpg” along with an extension, the ‘w’ mode is used to write the file and used f.write to write the content of the file.
• The CloseClipboard() is used to close the clipboard so that other windows can access the clipboard.

Install Python Pyperclip module

To install this module we have to use

Below screenshot shows the output.

Convert string in base64 to image and save in file python

Here, we can how to convert string in base64 to image and save in file python.

• In this example, I have imported a module called base64. The base64 is used to decode and encode also to convert the strings to byte format.
• To open the file I have used with open(“book.png”, “wb”) as f , and to save and to write the file I have used print(f.write(base64.b64decode(‘book’))).
• To decode the string to image base64.b64decode.

We can see the created file as the output. In the below screenshot.

Python save the image file to a folder

Here, we can see how to save image file to folder in python.

• In this example, I have imported a module called cv2 and os and declared a variable as image and assigned image = cv2.imread(‘doll.jpg’). The doll.jpg is the name of the file.
• The imread is used to load the image from the specified file, and the path of the folder is declared to save the image file to the folder.
• To join the paths into a single path, I have used os.path.join.

In the below screenshot we can see that the image file is saved to the path that, we have specified.

Python write an image to file

Now, we can see how to write an image to file in python

• In this example, I have imported a module called Image from PIL and opened the dolls.jpg image file to read and the file which is read is read.
• To write the image I have used opened the file named cartoon.png. To write the dolls.jpg image file into a new file called cartoon.png I have used file.write(). To close the file I have used file.close().

We can see that image is written to another file as the output. You can refer to the below screenshot for the output.

Python save the image to file open cv

Now, we can see how to save the image to file open cv in python

• In this example I have imported module cv2 as cv and sys , and declared a variable as image and assigned cv.imread(cv.samples.findFile(“doll.jpg”)). The doll.jpg is the name of the file.
• Here, I have taken if condition is none to check whether if an image is present or not. If the image is not present it returns “No image found.”
• If the image is present it displays the image by using cv.imshow().
• The ord() accepts the string as an argument and returns Unicode which is equal to the passed argument.
• After returning the string(“s”) the imagefile is showed by using cv.imwrite(“doll.jpg”, image).

Below screenshot shows the image file as the output.

You may like the following Python tutorials:

In this tutorial, we have learned about how to save an image to file in python, and also we have covered these topics:

• How to save an image in python
• Python show image
• Python save the image OpenCV2
• Python save an image to file from URL
• Read jpg from window clipboard in python
• Convert string in base64 to image and save in file python
• Python save the image file to a folder
• Python write an image to file
• Python save the image to file open cv

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