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Use Python’s built-in open() in text mode and call read() to load a text file into one string. Specify the encoding you expect the file to use:
with open("file.txt", encoding="utf-8") as f:
text = f.read()For a pathlib.Path, the shorter alternative is Path.read_text(). Both return decoded text as a Python str.
Read the whole file with open()
When open() is called without a mode, it opens the file for reading in text mode. Calling f.read() without a size reads all remaining contents and returns them as a string:
with open("file.txt", encoding="utf-8") as f:
text = f.read()
print(text)The with block closes the file when it ends, including if an exception occurs. Text mode decodes the file’s bytes using the selected encoding. The Python tutorial recommends UTF-8 unless you know the file requires another encoding; UTF-8 is not guaranteed to match every existing file. Python’s input and output tutorial explains the behavior of open(), reading and text mode.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
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Use Path.read_text() for a concise alternative
If you already have a path object, read_text() reads and decodes the file, then handles opening and closing it internally:
from pathlib import Path
text = Path("file.txt").read_text(encoding="utf-8")This also returns a str and reads the whole file into memory. The Python pathlib reference documents Path.read_text() and its byte-oriented counterpart, Path.read_bytes().
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
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- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Choose an encoding that matches the file
Pass the encoding used by the file’s producer or format when you know it. For UTF-8 text, use encoding="utf-8". If you omit encoding, the default can be platform- or configuration-dependent; do not assume the same default across Python installations.
If the selected decoder does not match the file’s bytes, Python may raise UnicodeDecodeError. Check the file’s actual encoding and specify it rather than suppressing decoding errors as a general workaround. The Python 3.12 io reference describes how omitted encodings can depend on UTF-8 Mode and how EncodingWarning can help find uses of default encodings; that behavior is scoped to the relevant version and configuration.
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- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
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Know when not to read everything into one string
read() with no size loads all remaining file contents into memory. That is convenient for a small or manageable text file, but can use too much memory for a very large one. Process the file incrementally instead:
with open("large.txt", encoding="utf-8") as f:
for line in f:
process(line)Iteration provides one line at a time rather than retaining the entire file as one string. By contrast, readlines() and list(f) collect lines into a list, so they are not streaming alternatives when memory use is the concern.
Rank #4
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- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
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- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Use binary mode for raw bytes or binary files
Text mode decodes bytes and performs newline handling; it is intended for text, not JPEGs, executables or other binary content. To keep raw bytes, use binary mode or the pathlib byte-reading method:
with open("image.jpg", "rb") as f:
data = f.read()
# Or:
from pathlib import Path
data = Path("image.jpg").read_bytes()These return bytes, not a string. Decode bytes only when you know they represent text and know which encoding to use. In default text mode, Python also translates platform-specific line endings to n; use binary mode if the exact newline bytes matter.
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
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- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
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