crdb-zoho-converter 0.2.0

Convert CRDB bank statements (XLS/XLSX) into CSV for Zoho Books

CRDB → ZOHO Books Converter

Converts CRDB bank statements (XLS/XLSX) into the CSV format that can be imported into Zoho Books.

Contents

• convert_crdb_to_zoho.py: CLI script for conversion
• _inspect_xls.py: small helper script to analyze new/changed XLS layouts
• files/: workspace for input/output files (ignored via .gitignore)

Requirements

• Python 3.11 (or compatible)
• Windows PowerShell (examples below use PowerShell paths)
• Linux/macOS shells are supported (examples provided)
• Dependencies: see requirements.txt (includes pandas, xlrd, openpyxl)

Quick start

Linux/macOS (bash/zsh):

git clone https://github.com/lkasdorf/CRDB_con_2025.git && cd CRDB_con_2025
python3 -m venv .venv
source .venv/bin/activate
pip install -e .

# Batch conversion (recommended)
crdb-convert --source source --dest converted

# Single file
crdb-convert -i source/statement.xlsx -o converted/statement.csv

# With mapping and per-row diagnostics
crdb-convert --source source --dest converted --map-file mapping.json --report-dir converted/reports

Windows (PowerShell):

git clone https://github.com/lkasdorf/CRDB_con_2025.git
Set-Location .\CRDB_con_2025
python -m venv .venv
.\.venv\Scripts\Activate.ps1
pip install -e .

# Batch conversion (recommended)
crdb-convert --source source --dest converted

# Single file
crdb-convert -i source\statement.xlsx -o converted\statement.csv

# With mapping and per-row diagnostics
crdb-convert --source source --dest converted --map-file mapping.json --report-dir converted\reports

Alternative (global install via pipx):

pip install pipx && pipx ensurepath
pipx install .
crdb-convert --help

Setup (recommended with virtual environment)

Windows (PowerShell):

python -m venv .venv
.\.venv\Scripts\Activate.ps1
python -m pip install --upgrade pip
python -m pip install -r requirements.txt

Linux/macOS (bash/zsh):

python3 -m venv .venv
source .venv/bin/activate
python3 -m pip install --upgrade pip
python3 -m pip install -r requirements.txt

Usage

Windows (PowerShell):

1. Place the CRDB source file (e.g., crdb_input.xls) into source/ for batch mode, or files/ for single-file mode.
2. Batch conversion (recommended):

.\.venv\Scripts\python.exe convert_crdb_to_zoho.py --source source --dest converted

3. Force re-run even if targets exist:

.\.venv\Scripts\python.exe convert_crdb_to_zoho.py --source source --dest converted --force

4. Single-file conversion (optional):

.\.venv\Scripts\python.exe convert_crdb_to_zoho.py -i files\crdb_input.xls -o converted\crdb_input.csv

Linux/macOS (bash/zsh):

1. Place the CRDB source file (e.g., crdb_input.xls) into source/ for batch mode, or files/ for single-file mode.
2. Batch conversion (recommended):

python3 convert_crdb_to_zoho.py --source source --dest converted

3. Force re-run even if targets exist:

python3 convert_crdb_to_zoho.py --source source --dest converted --force

4. Single-file conversion (optional):

python3 convert_crdb_to_zoho.py -i files/crdb_input.xls -o converted/crdb_input.csv

5. Import the generated CSV(s) from converted/ into Zoho Books.

Inspector (optional):

crdb-inspect --help
crdb-inspect --input files/crdb_input.xls --engine auto --sheet 0 --max-scan-rows 500

Installation (local/standalone)

Option A: Install into a virtual environment (recommended)

• Windows (PowerShell): see "Setup" above. Then:

pip install -e .

• Linux/macOS:

pip install -e .

After this, the commands crdb-convert and crdb-inspect are available on your PATH.

Option B: System-wide via pipx (clean, isolated)

• Prerequisite: install pipx (pip install pipx and then pipx ensurepath).

pipx install .

You can now use the tools globally: crdb-convert --help.

Option C: Run directly with Python (no installation)

python3 convert_crdb_to_zoho.py --source source --dest converted

Optional: Build standalone binaries (no Python required on target system)

• Install PyInstaller and build binaries:

pip install pyinstaller
pyinstaller --onefile --name crdb-convert convert_crdb_to_zoho.py
pyinstaller --onefile --name crdb-inspect _inspect_xls.py

The generated binaries are in dist/ (crdb-convert, crdb-inspect). They are OS/arch specific.

After installing/building:

• Show help: crdb-convert --help
• See examples under "Usage" and "CLI options".

Install from PyPI (recommended for end users)

Using pipx (global, isolated; auto PATH integration):

pip install pipx && pipx ensurepath
pipx install crdb-zoho-converter
crdb-convert --help

Alternative with pip --user:

pip install --user crdb-zoho-converter
# Ensure ~/.local/bin (Linux/macOS) or the Windows user Scripts folder is on PATH

Download prebuilt binaries (GitHub Releases)

Linux/macOS (download and add to PATH):

curl -L -o /usr/local/bin/crdb-convert \
  https://github.com/lkasdorf/CRDB_con_2025/releases/download/vX.Y.Z/crdb-convert
chmod +x /usr/local/bin/crdb-convert
crdb-convert --help

# Optional inspector tool
sudo curl -L -o /usr/local/bin/crdb-inspect \
  https://github.com/lkasdorf/CRDB_con_2025/releases/download/vX.Y.Z/crdb-inspect
sudo chmod +x /usr/local/bin/crdb-inspect

Windows (PowerShell):

if (-Not (Test-Path "$env:USERPROFILE\bin")) { New-Item -ItemType Directory $env:USERPROFILE\bin | Out-Null }
Invoke-WebRequest -Uri https://github.com/lkasdorf/CRDB_con_2025/releases/download/vX.Y.Z/crdb-convert.exe -OutFile $env:USERPROFILE\bin\crdb-convert.exe
# Make it available on PATH for future sessions:
setx PATH "$env:PATH;$env:USERPROFILE\bin"
crdb-convert.exe --help

# Optional inspector tool
Invoke-WebRequest -Uri https://github.com/lkasdorf/CRDB_con_2025/releases/download/vX.Y.Z/crdb-inspect.exe -OutFile $env:USERPROFILE\bin\crdb-inspect.exe

Add to PATH (so you can run crdb-convert from anywhere)

• Virtual environment (recommended): Activating the venv automatically adds its Scripts (Windows) or bin (Linux/macOS) folder to PATH.

  • Windows (PowerShell): \.venv\Scripts\Activate.ps1
  • Linux/macOS (bash/zsh): source .venv/bin/activate

• pipx (global, isolated): Run pipx ensurepath once and restart your shell.

  • Verify: which crdb-convert (Linux/macOS) or where crdb-convert (Windows)

• pip --user (if you use it): Ensure the user bin directory is on PATH.

  • Linux/macOS: ~/.local/bin (add to ~/.bashrc/~/.zshrc if needed)

    echo 'export PATH="$HOME/.local/bin:$PATH"' >> ~/.bashrc
    source ~/.bashrc
    

  • Windows: Find your user base with py -m site --user-base or python -m site --user-base. Add its Scripts subfolder to PATH (e.g., %USERPROFILE%\AppData\Roaming\Python\Python311\Scripts).

• PyInstaller binaries: Put the files from dist/ into a directory already on PATH, or extend PATH.

  • Linux/macOS (temporary for current session):

    export PATH="$(pwd)/dist:$PATH"
    

  • Linux/macOS (permanent): add the same line to ~/.bashrc/~/.zshrc.
  • Windows (PowerShell, permanent): Control Panel → Environment Variables → PATH → add ...\dist. Or (with care):

    setx PATH "$env:PATH;$(Get-Location)\dist"
    

CLI options

All flags are optional; defaults are chosen to work out-of-the-box with typical CRDB exports.

• -i, --input PATH: Single-file input (XLS/XLSX).

• -o, --output PATH: Output CSV path in single-file mode. Default: <dest>/<input_stem>.csv.

• --source PATH: Source directory for batch mode. Default: source/.

• --dest PATH: Output directory for batch mode. Default: converted/.

• --log PATH: Path to log file. Default: <dest>/conversion.log.

• --force: Overwrite existing target CSVs.

• --strict: Fail on parsing/validation warnings.

• --dry-run: Validate and report only; do not write CSV.

• --delimiter ";": CSV delimiter (default ;).

• --max-scan-rows 500: Max rows to scan while searching for the header.

• --engine auto|xlrd|openpyxl: Excel reader engine (default auto).

• --trace: Enable detailed DEBUG tracing in logs.

• --trace-max-rows 20: Number of rows to trace.

• --sheet NAME|INDEX: Select sheet by name or 0-based index.

• --header-row N: Override detected header row (1-based).

Mapping (column selection):

• --map-file PATH: JSON mapping configuration (see below).
• --map-posting STR: Override mapping for posting date column.
• --map-details STR: Override mapping for details/narration column.
• --map-debit STR: Override mapping for debit column.
• --map-credit STR: Override mapping for credit column.

Diagnostics reports:

• --report PATH: Per-row diagnostics CSV in single-file mode.
• --report-dir PATH: Directory for per-row diagnostics CSVs in batch mode (filename: <stem>.report.csv).

Notes:

• Supports .xls and .xlsx. For .xlsx, openpyxl is used.
• The log file is written to <dest>/conversion.log by default.
• Logging:
  • --json-logs to emit structured logs (one JSON per line)
  • --log-rotate-size and --log-rotate-backups for rotating log files

Numbers/locale:

• --decimal .|, decimal separator
• --thousands .|,|'|space thousands separator (optional)
• --currency CODE|SYMBOL currency code/symbol to strip (optional)

CSV formatting:

• --encoding output file encoding (default utf-8)
• --quotechar CSV quote character (default ")
• --no-header do not write CSV header row

Redaction:

• --redact masks sensitive fields in outputs (reports/logs/CSV)

Summary:

• --summary PATH|DIR write a JSON summary file (single-file) or to a directory (batch)

Target format (CSV)

Semicolon-separated (;) with this header:

Date;Withdrawals;Deposits;Payee;Description;Reference Number

Notes:

• Dates are output as YYYY-MM-DD.
• Amounts are decimals with a dot (e.g., 212.40).
• Payee remains empty, Description defaults to Transfer, Reference Number contains the CRDB details/narration.

Mapping configuration

Mapping kann die Auswahl der Eingabespalten steuern. Beispiel mapping.json:

{
  "posting_date": ["Posting Date", "Transaction Date"],
  "details": ["Details", "Narration", "Description"],
  "debit": ["Debit", "Withdrawal"],
  "credit": ["Credit", "Deposit"]
}

Anmerkungen:

• Werte können String oder Liste sein. Die Suche vergleicht case-insensitive, zuerst exakt, dann als Teilstring. Fallback-Heuristik bleibt aktiv.
• CLI-Overrides (--map-*) haben Vorrang vor der Datei.

Diagnostics und Validierung

Der Konverter sammelt Validierungs- und Parsing-Warnungen und protokolliert Beispiele. Bei --strict wird mit Fehler abgebrochen.

Mögliche Issues je Zeile (wichtig für den Report):

• date_unparsed: Datum konnte nicht geparst werden.
• debit_unparsed, credit_unparsed: Beträge nicht interpretierbar, obwohl Ziffern vorhanden.
• both_amounts: Debit und Credit gleichzeitig > 0.
• negative_debit, negative_credit: Negative Beträge erkannt.
• date_missing_with_amount: Betrag vorhanden, aber Datum leer.

Per-Row-Diagnose kann optional als CSV erzeugt werden (--report/--report-dir).

Helper script (optional)

Shows header candidate(s) and sample rows from the XLS file – useful if the CRDB layout changes:

.\.venv\Scripts\python.exe _inspect_xls.py

python3 _inspect_xls.py

Versioning

Semantic Versioning (MAJOR.MINOR.PATCH). Update the version in pyproject.toml under [project].version.

Examples:

• Stable release: 0.2.0 → 0.2.1
• Next minor: 0.2.1 → 0.3.0
• Development pre-release (editable installs and packaging will expose this): 0.3.0.dev1, 0.3.0a1, 0.3.0b1.

Check installed version:

crdb-convert --version

Release checklist:

• Bump [project].version in pyproject.toml
• Commit and tag (optional): git tag vX.Y.Z && git push --tags
• Reinstall if using editable: pip install -e .

Repository notes:

• The files/ directory is added to .gitignore and not versioned.
• The source/ and converted/ directories are versioned but kept empty in a fresh clone via .gitkeep files. Output CSVs and logs will appear in converted/ after running the converter.

License

See LICENSE.