Member Avatar for mohankumar554

hi
i am developing web services on MAC SYSTEM by using python-SOAP-ZSI tool. but i am getting this error when i am trying to install. so it is not working . so can u tell me how to overcome this error.
"SyntaxError: from __future__ imports must occur at the beginning of the file"

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  • Latest Post Latest Post by vegaseat

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This error means Python found something illegal before a module's future-import. As noted, placement matters — but there are a few less-obvious causes that commonly trip up installs on macOS (or when packages get built into eggs/wheels): an invisible UTF-8 BOM on the first bytes, an encoding line or stray non-printable bytes added by an editor, or a temporary/packaged copy of a third‑party module that has those bytes before its future import. The first step is to read the full Python traceback and note the exact filename and line where the SyntaxError occurs.

Quick checks you can run from the shell to inspect the first bytes of the offending file:

hexdump -n 8 -C path/to/problematic.py

or

xxd -l 8 path/to/problematic.py

If the output shows EF BB BF as the first three bytes, the file has a UTF-8 BOM. Fixes that work reliably:

  • Re-save the file in UTF-8 without a BOM using a proper text editor (TextMate, BBEdit, VS Code, etc.).
  • If you prefer a command-line fix, rewrite the file without the BOM (example Python snippet below) and then reinstall the package.
with open('problematic.py','rb') as f:
    d = f.read()
if d.startswith(b'\xef\xbb\xbf'):
    with open('problematic.py','wb') as f:
        f.write(d[3:])

Other troubleshooting notes: if the traceback points into a temporary build directory (pip/setuptools), download/unpack the source, fix the file in that copy, then run the install from that fixed tree; if the problem is inside a packaged egg/zip, unzip, fix, and reinstall. Also confirm the package is compatible with your Python version (older libraries sometimes assume older language defaults). Following these steps will find the offending file and resolve the "from future" placement error without guessing at which module is at fault.

Member Avatar for vegaseat

Check your Python code file, should have extension .py, and make sure the first active code line (other then comments) is something like ...

from __future__ import with_statement

The above import line for example is used by Python25 if you want to use the with statement, which has become standard with Python3 versions.

Edited by vegaseat because: n/a
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