Columnwise starting in top left: UPC-A, Maxicode, Code 128, Royal Mail 4 State Customer Code, QR Code, Italian Pharmacode, Aztec Code.īy the way, the name: barcode → bark ode → tree poem ( source). If you are not affected by any of these potential stumbling blocks, then treepoem is refreshingly easy to use.Ī selection of barcodes generated with treepoem, using symbologies from the common to the obscure. In addition, treepoem requires the Pillow package for producing image file formats (see the section “Image file format exporters” below for why this matters). This may be a problem if you are trying to generate barcode images in a shared environment such as a notebook server, to name just one example. treepoem invokes Postscript using subprocess.Popen() meaning that Postscript must already be installed and subprocess available. The Python package treepoem is a wrapper around the Postscript program BWIPP.
The way this feat is achieved, however, brings with it a few possible downsides. Treepoem stands out by the sheer number of supported symbologies and symbology variants. To generate barcodes of only a single symbology, I recommend these libraries: segno for QR and MicroQR, pdf417gen for PDF417, pylibdmtx for Datamatrix, and PubCode for Code 128.
If you cannot install treepoem’s dependencies, or just don’t want to, the next best general purpose option is python-barcode, the most actively maintained fork of the dormant pyBarcode package.
However, treepoem requires non-Python dependencies which might be difficult or impossible to install in some situations. It’s my recommendation for anyone who wants to work with many symbologies. It supports all common barcode symbologies as well as many obscure ones, is actively maintained, and is available under the MIT license. Treepoem is the most feature-rich Python package for rendering barcodes as images. This article was last updated on January 23th, 2019. This review article is the result of that work. While preparing a conference talk about barcodes, I spent three evenings researching Python packages for generating images of 1D and 2D barcodes. And just like the information stored in browser cookies, the information in barcodes isn’t in plain sight but easily made visible. From that point onward you’re asked to show your barcode at every interaction: at security, the duty-free shop, and the boarding gate. I think of barcodes as the real-world equivalent of browser cookies: For example, when you arrive at airport departures, the airline hands you a boarding pass with a barcode (the cookie). The Best Python Packages for Generating Barcodesīarcodes are a cheap and ubiquitous way to add machine-readable information to an object.
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